:root {
  --ink: #10243f;
  --gold: #e2b04a;
  --paper: #f4f1ea;
  --card: #fffdf8;
  --line: #d9d1c3;
  --muted: #5c6570;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 100% 0, rgba(226, 176, 74, 0.18), transparent 28rem),
    var(--paper);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}

img { display: block; max-width: 100%; }

a { color: inherit; }

.top {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 14px 7vw;
  background: rgba(244, 241, 234, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand img { border-radius: 10px; }

.brand strong { display: block; font-size: 16px; letter-spacing: 0.04em; }

.brand small {
  display: block;
  margin-top: -2px;
  color: var(--muted);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 11px;
}

nav { display: flex; gap: 22px; margin-left: auto; }

nav a { text-decoration: none; font-size: 14px; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
  font-size: 14px;
}

.button.large {
  min-height: 48px;
  padding: 0 22px;
  background: var(--gold);
  color: var(--ink);
  font-weight: 700;
}

.hero, section { padding: 72px 7vw; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(220px, 0.7fr);
  gap: 48px;
  align-items: center;
  padding-top: 56px;
}

.eyebrow {
  margin: 0 0 12px;
  color: #8a6420;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1.15;
  font-weight: 650;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.lead {
  max-width: 38rem;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }

.meta { color: var(--muted); font-size: 13px; }

.hero-mark {
  margin: 0;
  justify-self: end;
  text-align: center;
}

.hero-mark img {
  width: min(280px, 70vw);
  height: auto;
  border-radius: 56px;
  box-shadow: 0 24px 60px rgba(16, 36, 63, 0.18);
}

.hero-mark figcaption {
  margin-top: 12px;
  color: var(--muted);
  letter-spacing: 0.18em;
  font-size: 12px;
}

h2 { margin: 0 0 28px; font-size: 32px; }

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

article, .reasons li, .download {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
}

article { padding: 22px 22px 8px; }

article h3 { margin: 0 0 8px; font-size: 18px; }

article p, .reasons span { color: var(--muted); }

.audiences {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  padding-top: 24px;
}

.audience { padding: 32px 30px 18px; }

.audience:first-child { background: var(--ink); color: #fff; border: 0; }

.audience:first-child span { color: rgba(255, 255, 255, 0.76); }

.audience h2 { font-size: 26px; margin-bottom: 20px; }

.audience ul { list-style: none; margin: 0; padding: 0; }

.audience li { padding: 14px 0; border-top: 1px solid rgba(127, 127, 127, 0.25); }

.audience strong { display: block; font-size: 17px; margin-bottom: 4px; }

.audience span { color: var(--muted); }

.tag {
  display: inline-block;
  margin: 0 0 12px;
  padding: 2px 12px;
  border-radius: 999px;
  background: var(--gold);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}

.reasons { padding-top: 0; }

.reasons ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.reasons li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 18px;
  padding: 22px 24px;
}

.reasons li::before {
  content: counter(item);
  counter-increment: item;
  grid-row: span 2;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--gold);
  font-weight: 700;
  display: grid;
  place-items: center;
}

.reasons ol { counter-reset: item; }

.reasons strong { display: block; font-size: 18px; }

.download {
  margin: 0 7vw 72px;
  padding: 36px;
  display: block;
  background: var(--ink);
  color: #fff;
  border: 0;
}

.download p, .download li { color: rgba(255, 255, 255, 0.78); }

.download ul { padding-left: 18px; }

footer {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 7vw 40px;
  color: var(--muted);
}

footer img { border-radius: 8px; }

@media (max-width: 860px) {
  .top { flex-wrap: wrap; gap: 12px; }
  nav { display: none; }
  .hero, .grid, .reasons li, .audiences { grid-template-columns: 1fr; }
  .hero-mark { justify-self: start; }
  .reasons li::before { grid-row: auto; }
}