*,
*::before,
*::after { box-sizing: border-box; }

:root {
  --bg: #090a09;
  --bg-soft: #10110f;
  --surface: #161714;
  --surface-2: #1c1d1a;
  --border: rgba(230, 208, 158, .16);
  --border-strong: rgba(230, 208, 158, .32);
  --text: #f5f1e7;
  --text-muted: #aaa69d;
  --text-dim: #77756f;
  --navy: #f5f1e7;
  --blue: #d4b46a;
  --blue-soft: rgba(212, 180, 106, .09);
  --purple: #d4b46a;
  --purple-soft: rgba(212, 180, 106, .09);
  --orange: #dfbd72;
  --orange-soft: rgba(223, 189, 114, .09);
  --gold: #d4b46a;
  --gold-soft: rgba(212, 180, 106, .12);
  --cyan: #c9b27b;
  --cyan-soft: rgba(201, 178, 123, .08);
  --success: #81a987;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 24px 70px rgba(0, 0, 0, .34);
  --shadow-lg: 0 36px 90px rgba(0, 0, 0, .48);
  --max: 1140px;
  --nav-h: 74px;
}

html { scroll-behavior: smooth; color-scheme: dark; }
body {
  margin: 0;
  font-family: "SF Pro Display", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background:
    radial-gradient(circle at 4% 4%, rgba(190, 150, 72, .08), transparent 24rem),
    var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky; top: 0; z-index: 100; height: var(--nav-h);
  border-bottom: 1px solid var(--border);
  background: rgba(9, 10, 9, .88);
  backdrop-filter: blur(18px);
}
.nav-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 11px; font-size: 18px; font-weight: 750; letter-spacing: .06em; }
.brand img { width: 42px; height: 42px; border-radius: 10px; }
.nav-links { display: flex; align-items: center; gap: 34px; color: var(--text-muted); font-size: 14px; }
.nav-links a:hover, .nav-login:hover, .nav-download:hover { color: var(--gold); }
.nav-actions { display: flex; align-items: center; gap: 16px; }
.nav-login, .nav-download { color: var(--text-muted); font-size: 14px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 42px; padding: 10px 20px; border: 1px solid transparent;
  border-radius: var(--radius-sm); font: inherit; font-size: 14px; font-weight: 700;
  cursor: pointer; transition: .2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-lg { min-height: 50px; padding: 13px 25px; }
.btn-primary {
  color: #16140f;
  background: linear-gradient(135deg, #ead08f, #c99f4f);
  box-shadow: 0 10px 34px rgba(210, 173, 92, .17);
}
.btn-primary:hover { background: linear-gradient(135deg, #f1dda8, #d5ad5d); box-shadow: 0 14px 38px rgba(210, 173, 92, .25); }
.btn-secondary { color: var(--text); background: var(--surface); border-color: var(--border-strong); }
.btn-secondary:hover, .btn-ghost:hover { color: var(--gold); border-color: rgba(212, 180, 106, .55); background: var(--surface-2); }
.btn-ghost { color: var(--text-muted); background: transparent; border-color: var(--border); }
.menu-toggle { display: none; padding: 8px 12px; color: var(--text); background: transparent; border: 1px solid var(--border); border-radius: 8px; }

.hero {
  position: relative; overflow: hidden; min-height: calc(100vh - var(--nav-h)); padding: 100px 0 88px;
  background:
    linear-gradient(rgba(223,189,114,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(223,189,114,.028) 1px, transparent 1px);
  background-size: 72px 72px;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(circle at 9% 35%, rgba(191, 142, 49, .11), transparent 30%),
    radial-gradient(circle at 90% 35%, rgba(229, 199, 132, .045), transparent 35%),
    linear-gradient(90deg, rgba(9,10,9,.18), rgba(9,10,9,.45));
  pointer-events: none;
}
.hero-grid { position: relative; display: grid; grid-template-columns: .98fr 1.02fr; gap: 76px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; color: var(--gold); background: transparent;
  border: 0; padding: 0; font-size: 13px; font-weight: 750; letter-spacing: .16em;
}
.hero h1 { margin: 27px 0 24px; color: var(--text); font-size: clamp(42px, 4.3vw, 54px); line-height: 1.08; letter-spacing: -.045em; }
.hero h1 em { color: #e2c47c; font-style: normal; }
.hero-subtitle { max-width: 590px; margin: 0 0 30px; color: var(--text-muted); font-size: 18px; line-height: 1.75; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 24px; }
.hero-actions.center { justify-content: center; }
.hero-link { color: var(--text-muted); font-size: 14px; font-weight: 650; }
.hero-link span { margin-left: 8px; color: var(--gold); }
.hero-link:hover { color: var(--text); }
.hero-trust { display: flex; flex-wrap: wrap; gap: 12px 24px; margin: 31px 0 0; padding: 0; list-style: none; color: var(--text-dim); font-size: 12px; }
.hero-trust li::before { content: ""; display: inline-block; width: 5px; height: 5px; margin: 0 9px 2px 0; border-radius: 50%; background: var(--gold); box-shadow: 0 0 10px rgba(212,180,106,.45); }

.insight-card {
  position: relative; overflow: hidden; padding: 28px;
  border: 1px solid var(--border-strong); border-radius: 22px;
  background: linear-gradient(145deg, rgba(31,32,29,.94), rgba(21,22,20,.95));
  box-shadow: var(--shadow-lg);
}
.insight-card::before { content: ""; position: absolute; top: 0; left: 28px; right: 28px; height: 1px; background: linear-gradient(90deg, transparent, #dfbd72, transparent); }
.insight-head { display: flex; justify-content: space-between; gap: 20px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
.insight-head div { display: grid; gap: 3px; }
.insight-head strong { font-size: 18px; }
.insight-head span { color: var(--text-dim); font-size: 11px; }
.insight-head b { color: var(--gold); font-size: 12px; font-weight: 700; }
.insight-main { padding: 30px 0 25px; border-bottom: 1px solid var(--border); }
.insight-main > span { color: var(--gold); font-size: 11px; font-weight: 750; letter-spacing: .08em; }
.insight-main h2 { margin: 13px 0 9px; font-size: 24px; line-height: 1.35; }
.insight-main p { margin: 0; color: var(--text-dim); font-size: 13px; }
.insight-list { margin: 0; padding: 0; list-style: none; }
.insight-list li { display: grid; grid-template-columns: 42px 1fr auto; gap: 12px; align-items: center; padding: 18px 0; border-bottom: 1px solid rgba(230,208,158,.08); }
.insight-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.insight-list small { color: var(--gold); font-size: 10px; }
.insight-list div { display: grid; }
.insight-list strong { font-size: 14px; font-weight: 650; }
.insight-list span { color: var(--text-dim); font-size: 11px; }
.insight-list b { color: #bca873; font-size: 11px; font-weight: 500; }

.section { padding: 88px 0; }
.section-soft { background: #0d0e0c; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { max-width: 720px; margin-bottom: 42px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-label { display: inline-block; margin-bottom: 12px; color: var(--gold); font-size: 11px; font-weight: 750; letter-spacing: .15em; text-transform: uppercase; }
.section-head h2 { margin: 0 0 13px; color: var(--text); font-size: clamp(29px, 3.6vw, 40px); line-height: 1.2; letter-spacing: -.025em; }
.section-head p { margin: 0; color: var(--text-muted); font-size: 16px; }

.question-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.question-card, .price-card, .flow-step, .audience-list li, .download-card {
  border: 1px solid var(--border); background: linear-gradient(145deg, var(--surface), #121310); box-shadow: var(--shadow);
}
.question-card { padding: 25px 22px; border-radius: var(--radius); transition: .2s ease; }
.question-card:hover, .price-card:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.q-num { color: var(--gold); font-size: 11px; font-weight: 750; }
.question-card h3 { margin: 16px 0 9px; font-size: 18px; }
.question-card p { margin: 0; color: var(--text-muted); font-size: 13px; }

.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.price-card { position: relative; display: flex; flex-direction: column; gap: 11px; padding: 23px; border-radius: var(--radius); transition: .2s ease; }
.price-card.featured, .price-card.bundle { border-color: var(--border-strong); background: linear-gradient(160deg, rgba(212,180,106,.12), var(--surface) 55%); }
.price-card h3 { margin: 0; font-size: 15px; }
.price { color: var(--gold); font-size: 28px; font-weight: 750; line-height: 1.15; }
.price span { color: var(--text-dim); font-size: 12px; font-weight: 500; }
.price-card p { flex: 1; margin: 0; color: var(--text-muted); font-size: 13px; }
.price-card .btn { width: 100%; margin-top: 4px; }
.badge { position: absolute; top: 14px; right: 14px; padding: 4px 9px; color: #17150f; background: var(--gold); border-radius: 999px; font-size: 10px; font-weight: 750; }

.ai-card { max-width: 760px; margin: 0 auto; padding: 31px; border: 1px solid var(--border-strong); border-radius: 20px; background: linear-gradient(145deg, var(--surface-2), var(--surface)); box-shadow: var(--shadow-lg); }
.ai-badge { display: inline-block; padding: 5px 11px; color: var(--gold); background: var(--gold-soft); border: 1px solid var(--border-strong); border-radius: 999px; font-size: 11px; font-weight: 750; }
.ai-summary { margin: 18px 0 22px; font-size: 21px; font-weight: 650; }
.ai-blocks { display: grid; gap: 17px; margin-bottom: 25px; }
.ai-blocks h4 { margin: 0 0 5px; color: var(--gold); font-size: 11px; letter-spacing: .1em; }
.ai-blocks p { margin: 0; color: var(--text-muted); font-size: 14px; }
.ai-card-foot { display: flex; flex-wrap: wrap; gap: 10px; padding-top: 18px; border-top: 1px solid var(--border); }

.flow-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
.flow-step { padding: 26px; border-radius: var(--radius); text-align: center; }
.flow-icon { display: grid; place-items: center; width: 38px; height: 38px; margin: 0 auto 14px; color: #18160f; background: linear-gradient(135deg, #efd594, #bb8e3e); border-radius: 50%; font-weight: 800; }
.flow-step h3 { margin: 0 0 8px; font-size: 17px; }
.flow-step p { margin: 0; color: var(--text-muted); font-size: 13px; }
.flow-arrow { display: none; }

.audience-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin: 0; padding: 0; list-style: none; }
.audience-list li { padding: 17px 15px; border-radius: var(--radius-sm); color: var(--text); text-align: center; font-size: 13px; }

.cta-final { padding: 90px 0 80px; color: var(--text); background: radial-gradient(circle at 50% 0, rgba(212,180,106,.13), transparent 35rem), #0c0d0b; border-top: 1px solid var(--border); }
.cta-final-inner { max-width: 780px; text-align: center; }
.cta-final h2 { margin: 14px 0 12px; font-size: clamp(30px, 4vw, 42px); }
.cta-final-inner > p { margin: 0 0 28px; color: var(--text-muted); }
.eyebrow-dark { color: var(--gold); }
.pilot-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 30px 0; text-align: left; }
.pilot-grid div { display: grid; gap: 6px; padding: 18px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: rgba(255,255,255,.025); }
.pilot-grid strong { color: var(--gold); font-size: 13px; }
.pilot-grid span, .pilot-note { color: var(--text-muted); font-size: 12px; }
.pilot-note { margin-top: 20px !important; }

.site-footer { padding: 33px 0 40px; border-top: 1px solid var(--border); background: #080908; color: var(--text-dim); font-size: 12px; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-links a:hover { color: var(--gold); }
.hidden { display: none !important; }

/* Download and legal pages */
.download-page, .legal { min-height: calc(100vh - 180px); }
.download-header h1, .legal h1, .legal h2, .download-card h2 { color: var(--text); }
.download-card { border-radius: var(--radius); }
.legal article { box-shadow: var(--shadow-lg); }
code { color: var(--gold); border: 1px solid var(--border); }

@media (max-width: 1024px) {
  .nav-links { gap: 20px; }
  .hero { padding-top: 72px; }
  .hero-grid { grid-template-columns: 1fr; gap: 52px; }
  .hero-copy { max-width: 720px; }
  .question-grid, .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .audience-list { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  :root { --nav-h: 68px; }
  .container { width: min(100% - 28px, var(--max)); }
  .nav-links, .nav-login, .nav-download { display: none; }
  .menu-toggle { display: inline-flex; }
  .nav-links.open { display: flex; position: absolute; top: var(--nav-h); left: 0; right: 0; flex-direction: column; align-items: flex-start; padding: 18px 20px 24px; background: rgba(9,10,9,.98); border-bottom: 1px solid var(--border); }
  .nav-actions { gap: 9px; }
  .nav-actions .btn { padding-inline: 13px; font-size: 12px; }
  .hero { min-height: auto; padding: 62px 0 66px; background-size: 46px 46px; }
  .hero h1 { font-size: clamp(37px, 12vw, 49px); }
  .hero-subtitle { font-size: 16px; }
  .hero-trust { display: grid; gap: 8px; }
  .insight-card { padding: 21px; }
  .insight-main h2 { font-size: 20px; }
  .insight-list li { grid-template-columns: 37px 1fr; }
  .insight-list li > b { display: none; }
  .section { padding: 65px 0; }
  .question-grid, .pricing-grid, .flow-steps, .audience-list, .pilot-grid { grid-template-columns: 1fr; }
  .price-card .badge { position: static; align-self: flex-start; }
  .ai-card { padding: 23px; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}