/* Set 1 root — light official canvas, pill nav, two-column hero */
:root {
  --ink: #1a2332;
  --mute: #5b6778;
  --line: #d5deea;
  --paper: #ffffff;
  --wash: #eef3fa;
  --brand: #1a73e8;
  --brand-2: #1557b0;
  --ok: #188038;
}
* { box-sizing: border-box; }
html { scroll-behavior: auto; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--wash);
  font: 16px/1.75 "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(1100px, calc(100% - 32px)); margin: 0 auto; }
.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 30;
}
.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 70px;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  font-size: 18px;
}
.brand:hover { text-decoration: none; }
.nav { display: flex; gap: 6px; }
.nav a {
  padding: 8px 16px;
  border-radius: 999px;
  color: var(--mute);
  font-weight: 600;
}
.nav a:hover { background: #e8f0fe; text-decoration: none; color: var(--brand); }
.nav a.is-current { background: #e8f0fe; color: var(--brand); }
.hero {
  padding: 68px 0 40px;
  background: linear-gradient(180deg, #dbeafe 0%, var(--wash) 86%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 32px;
  align-items: center;
}
.hero h1 { font-size: 38px; line-height: 1.28; margin: 0 0 14px; }
.lead { color: var(--mute); font-size: 18px; margin: 0 0 22px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 700;
  background: var(--brand);
  color: #fff;
}
.btn:hover { background: var(--brand-2); text-decoration: none; color: #fff; }
.btn-ghost {
  background: var(--paper);
  color: var(--brand);
  border: 1px solid #c5d8f6;
}
.btn-ghost:hover { color: var(--brand-2); }
.panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
}
section { padding: 28px 0; }
.block-title { font-size: 26px; margin: 0 0 12px; }
.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(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
}
.card h3 { margin: 0 0 8px; font-size: 18px; }
.muted { color: var(--mute); }
.quote { border-left: 4px solid var(--brand); padding: 4px 0 4px 14px; }
.stat { font-size: 28px; font-weight: 800; color: var(--brand); }
table { width: 100%; border-collapse: collapse; background: var(--paper); }
th, td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
th { background: #f3f7fd; }
.faq details {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 10px;
}
.faq summary { cursor: pointer; font-weight: 700; }
.site-footer {
  background: #152033;
  color: #d5deea;
  padding: 36px 0 24px;
  margin-top: 24px;
}
.site-footer a { color: #9ec1ff; }
.safe-note { color: #b7f0c8; }
@media (max-width: 860px) {
  .hero-grid, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
}