:root {
  --ink: #122033;
  --muted: #5d6a79;
  --line: #dce5ec;
  --paper: #f4f8fa;
  --white: #ffffff;
  --blue: #1769e0;
  --blue-dark: #0e4ca7;
  --mint: #0c8b73;
  --mint-soft: #dff7ef;
  --gold: #f4b941;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 88% 8%, rgba(23, 105, 224, .13), transparent 24rem),
    linear-gradient(180deg, #f7fbfd 0%, #eef4f7 100%);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  line-height: 1.65;
}

a { color: inherit; }

.shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(220, 229, 236, .82);
  background: rgba(247, 251, 253, .86);
  backdrop-filter: blur(18px);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 800; letter-spacing: -.02em; }
.brand-mark { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 13px; color: white; background: linear-gradient(145deg, var(--blue), var(--blue-dark)); box-shadow: 0 9px 22px rgba(23, 105, 224, .22); }
.brand-mark svg { width: 23px; }
.nav-links { display: flex; align-items: center; gap: 24px; font-size: 14px; font-weight: 650; }
.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links a:hover { color: var(--blue); }

.hero { padding: 104px 0 82px; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; padding: 7px 12px; border: 1px solid #bcd6f6; border-radius: 999px; color: var(--blue-dark); background: #edf5ff; font-size: 13px; font-weight: 750; }
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 5px rgba(12,139,115,.12); }
h1 { max-width: 830px; margin: 24px 0 20px; font-size: clamp(44px, 7vw, 76px); line-height: 1.04; letter-spacing: -.055em; }
.hero-copy { max-width: 720px; margin: 0; color: var(--muted); font-size: clamp(17px, 2.2vw, 21px); }
.hero-note { display: flex; gap: 12px; align-items: flex-start; width: fit-content; margin-top: 34px; padding: 14px 17px; border: 1px solid #c8e7df; border-radius: 14px; color: #126654; background: rgba(223,247,239,.72); font-size: 14px; }
.hero-note strong { color: #084f40; }

.section { padding: 76px 0; }
.section-heading { max-width: 710px; margin-bottom: 38px; }
.kicker { color: var(--blue); font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
h2 { margin: 8px 0 10px; font-size: clamp(30px, 4vw, 46px); line-height: 1.15; letter-spacing: -.035em; }
.section-heading p { margin: 0; color: var(--muted); font-size: 17px; }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { min-height: 245px; padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: rgba(255,255,255,.82); box-shadow: 0 16px 42px rgba(21,48,70,.06); }
.card-index { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 12px; color: var(--blue); background: #eaf3ff; font-weight: 850; }
.card h3 { margin: 44px 0 8px; font-size: 21px; letter-spacing: -.02em; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

.trust-panel { display: grid; grid-template-columns: .85fr 1.15fr; gap: 46px; padding: 48px; border-radius: 28px; color: white; background: #142f48; box-shadow: 0 22px 58px rgba(20,47,72,.2); }
.trust-panel h2 { margin-top: 0; }
.trust-panel > p { margin: 0; color: #c8d9e7; }
.check-list { display: grid; gap: 14px; }
.check-item { display: flex; gap: 13px; align-items: flex-start; padding: 16px; border: 1px solid rgba(255,255,255,.11); border-radius: 15px; background: rgba(255,255,255,.055); }
.check { flex: 0 0 auto; display: grid; place-items: center; width: 25px; height: 25px; margin-top: 1px; border-radius: 50%; color: #082f25; background: #66d9bd; font-size: 14px; font-weight: 900; }
.check-item strong { display: block; margin-bottom: 2px; }
.check-item span { color: #c8d9e7; font-size: 14px; }

.scope { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.scope-box { padding: 30px; border: 1px solid var(--line); border-radius: 22px; background: var(--white); }
.scope-box h3 { margin: 0 0 15px; font-size: 20px; }
.scope-box ul { margin: 0; padding: 0; list-style: none; }
.scope-box li { position: relative; padding: 9px 0 9px 25px; color: var(--muted); }
.scope-box li::before { content: ""; position: absolute; left: 2px; top: 18px; width: 7px; height: 7px; border-radius: 50%; background: var(--mint); }
.scope-box.restricted li::before { background: #9aa8b5; }

.cta { margin: 28px 0 90px; padding: 42px; border: 1px solid #bcd6f6; border-radius: 26px; background: linear-gradient(135deg, #edf5ff, #f7fbff); text-align: center; }
.cta h2 { margin-top: 0; }
.cta p { max-width: 690px; margin: 0 auto 24px; color: var(--muted); }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border-radius: 13px; color: white; background: var(--blue); text-decoration: none; font-weight: 750; box-shadow: 0 10px 24px rgba(23,105,224,.2); }
.button:hover { background: var(--blue-dark); }

.footer { padding: 30px 0 46px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.footer-row { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer a { color: var(--blue-dark); font-weight: 650; text-decoration: none; }

.document { width: min(900px, calc(100% - 40px)); margin: 0 auto; padding: 76px 0 100px; }
.document-header { padding-bottom: 36px; border-bottom: 1px solid var(--line); }
.document-header h1 { margin-bottom: 14px; font-size: clamp(40px, 6vw, 62px); }
.updated { color: var(--muted); font-size: 14px; }
.document-body { padding-top: 26px; }
.document-body section { padding: 24px 0; border-bottom: 1px solid var(--line); }
.document-body h2 { margin: 0 0 10px; font-size: 23px; letter-spacing: -.02em; }
.document-body p, .document-body li { color: #435264; }
.document-body ul { padding-left: 22px; }
.document-body code { padding: 2px 6px; border-radius: 6px; background: #e8eef3; font-family: ui-monospace, monospace; font-size: .92em; }
.privacy-callout { margin: 22px 0 4px; padding: 18px 20px; border-left: 4px solid var(--mint); border-radius: 10px; background: var(--mint-soft); color: #125b4b; }

@media (max-width: 820px) {
  .grid, .scope, .trust-panel { grid-template-columns: 1fr; }
  .trust-panel { padding: 32px; gap: 24px; }
  .hero { padding: 76px 0 62px; }
  .nav-links a:first-child { display: none; }
}

@media (max-width: 520px) {
  .shell, .document { width: min(100% - 26px, 1120px); }
  .nav { min-height: 64px; }
  .brand-mark { width: 36px; height: 36px; }
  .nav-links { gap: 13px; font-size: 13px; }
  .hero { padding-top: 58px; }
  h1 { font-size: 42px; }
  .card { min-height: 0; }
  .card h3 { margin-top: 30px; }
  .cta { padding: 30px 22px; }
}