:root {
  --ink: #162033;
  --muted: #59667a;
  --line: #dbe2eb;
  --surface: #ffffff;
  --surface-muted: #f3f6f9;
  --brand: #0b63ce;
  --brand-dark: #084b9b;
  --teal: #087f73;
  --amber: #a45c08;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--surface);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--surface); line-height: 1.65; }
img { display: block; max-width: 100%; }
a { color: inherit; }
.shell { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
}

.nav-row { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 750; text-decoration: none; }
.brand img { border-radius: 7px; }
.nav-row nav { display: flex; align-items: center; gap: 24px; }
.nav-row nav > a { color: var(--muted); font-size: 14px; font-weight: 650; text-decoration: none; }
.nav-row nav > a:hover { color: var(--ink); }

.button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 17px;
  border: 1px solid transparent;
  border-radius: 7px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}
.button-primary { color: #fff !important; background: var(--brand); border-color: var(--brand); }
.button-primary:hover { background: var(--brand-dark); border-color: var(--brand-dark); }
.button-secondary { color: var(--ink); background: #fff; border-color: #aeb9c8; }
.button-secondary:hover { border-color: var(--ink); }
.button-purchase { color: #fff !important; background: #c85d08; border-color: #c85d08; }
.button-purchase:hover { background: #a84c05; border-color: #a84c05; }

.hero { padding: 70px 0 0; text-align: center; }
.eyebrow { margin: 0 0 10px; color: var(--brand); font-size: 13px; font-weight: 800; }
.hero h1 { margin: 0; font-size: 56px; line-height: 1.08; letter-spacing: 0; }
.hero-lead { max-width: 820px; margin: 16px auto 0; font-size: 25px; line-height: 1.35; font-weight: 650; }
.hero-copy { max-width: 760px; margin: 18px auto 0; color: var(--muted); font-size: 16px; }
.hero-benefits { max-width: 760px; margin: 24px auto 0; padding: 15px 18px; border: 1px solid #e5c29e; border-radius: 7px; background: #fff8f0; text-align: left; }
.hero-benefits strong { display: block; color: var(--amber); font-size: 14px; }
.hero-benefits ul { display: flex; flex-wrap: wrap; gap: 7px 20px; margin: 9px 0 0; padding: 0; list-style: none; color: var(--ink); font-size: 14px; font-weight: 650; }
.hero-benefits li::before { content: ""; display: inline-block; width: 6px; height: 6px; margin: 0 8px 2px 0; border-radius: 50%; background: var(--amber); }
.hero-actions { margin-top: 26px; display: flex; justify-content: center; gap: 12px; }
.hero-media { margin: 44px 0 0; overflow: hidden; border-top: 1px solid var(--line); background: #f8fafc; }
.hero-media img { width: 100%; height: min(400px, 42vh); object-fit: contain; object-position: center bottom; }

.platform-band { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #eef5fd; }
.platform-layout { padding: 28px 0; display: grid; grid-template-columns: minmax(0, 1fr) minmax(420px, 1fr); gap: 36px; align-items: center; }
.platform-layout h2 { margin: 0; font-size: 25px; line-height: 1.3; }
.platform-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.platform-list > div { min-height: 72px; padding: 12px; display: grid; gap: 5px; background: #fff; border: 1px solid #cbd8e8; border-radius: 7px; }
.platform-list strong { font-size: 14px; }
.status { font-size: 12px; font-weight: 700; }
.status.live { color: var(--teal); }
.status.soon { color: var(--amber); }

.section { padding: 78px 0; }
.section-muted { background: var(--surface-muted); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-heading { max-width: 720px; margin-bottom: 38px; }
.section-heading.compact { margin-bottom: 0; }
.section-heading h2 { margin: 0; font-size: 34px; line-height: 1.25; letter-spacing: 0; }
.section-heading > p:last-child { margin: 12px 0 0; color: var(--muted); }

.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.feature-item { min-height: 220px; padding: 24px; border: 1px solid var(--line); border-radius: 7px; background: #fff; }
.feature-number { color: var(--brand); font-size: 13px; font-weight: 800; }
.feature-item h3 { margin: 22px 0 8px; font-size: 19px; }
.feature-item p { margin: 0; color: var(--muted); font-size: 14px; }

.workflow-layout, .faq-layout { display: grid; grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1.3fr); gap: 70px; align-items: start; }
.workflow-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.workflow-list li { min-height: 96px; display: grid; grid-template-columns: 42px minmax(0, 1fr); gap: 16px; padding: 18px; background: #fff; border: 1px solid var(--line); border-radius: 7px; }
.workflow-list li > span { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--teal); font-weight: 800; }
.workflow-list strong { display: block; margin-bottom: 3px; }
.workflow-list p { margin: 0; color: var(--muted); font-size: 14px; }

.price-panel { display: grid; grid-template-columns: minmax(220px, 0.75fr) minmax(320px, 1.25fr) auto; gap: 36px; align-items: center; padding: 30px; border: 1px solid #b8c9de; border-radius: 8px; background: #f6faff; }
.price-label { color: var(--muted); font-size: 13px; font-weight: 700; }
.price { margin: 4px 0 6px; display: flex; align-items: baseline; gap: 7px; }
.price strong { font-size: 46px; line-height: 1; }
.price span { color: var(--muted); }
.price-panel p { margin: 0; color: var(--muted); font-size: 14px; }
.price-panel ul { margin: 0; padding-left: 20px; color: var(--muted); font-size: 14px; }
.price-panel li + li { margin-top: 7px; }

.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { padding: 20px 0; cursor: pointer; font-weight: 700; }
.faq-list p { margin: -6px 0 20px; color: var(--muted); }

.site-footer { padding: 30px 0; background: #162033; color: #dce5f1; }
.footer-layout { display: flex; justify-content: space-between; gap: 30px; align-items: center; }
.footer-layout p { margin: 5px 0 0; color: #aebbd0; font-size: 13px; }
.footer-layout nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 18px; }
.footer-layout a { color: #dce5f1; font-size: 13px; text-decoration: none; }

@media (max-width: 900px) {
  .nav-row { align-items: flex-start; padding: 14px 0; }
  .nav-row nav { justify-content: flex-end; flex-wrap: wrap; gap: 12px 18px; }
  .hero { padding-top: 54px; }
  .hero h1 { font-size: 46px; }
  .hero-lead { font-size: 22px; }
  .platform-layout, .workflow-layout, .faq-layout { grid-template-columns: 1fr; gap: 28px; }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .price-panel { grid-template-columns: 1fr 1fr; }
  .price-panel .button { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  .shell { width: min(100% - 28px, 1160px); }
  .nav-row { display: grid; gap: 12px; }
  .nav-row nav { justify-content: flex-start; }
  .nav-row nav > a:not(.button) { display: none; }
  .hero { padding-top: 42px; }
  .hero h1 { font-size: 40px; }
  .hero-lead { font-size: 20px; }
  .hero-copy { font-size: 15px; }
  .hero-benefits { margin-top: 20px; padding: 14px; }
  .hero-benefits ul { display: grid; gap: 7px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-media { margin-top: 32px; }
  .hero-media img { width: 100%; height: auto; max-height: 300px; object-fit: contain; object-position: center; }
  .platform-list, .feature-grid { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .section-heading h2 { font-size: 28px; }
  .feature-item { min-height: 0; }
  .price-panel { grid-template-columns: 1fr; padding: 22px; }
  .price-panel .button { grid-column: auto; }
  .footer-layout { align-items: flex-start; flex-direction: column; }
  .footer-layout nav { justify-content: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}