:root {
  --bg: #f4f7fb;
  --ink: #0f1724;
  --blue: #1563d8;
  --blue-d: #0b3f96;
  --chip: #e8f0fe;
  --line: #d5deea;
  --white: #ffffff;
  --mute: #5b6b80;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  font-size: 16px;
}

.sticky-bar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #fff;
  box-shadow: 0 1px 0 var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 28px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 22px;
  color: var(--blue-d);
  letter-spacing: 0.04em;
}
.nav-pills { display: flex; gap: 8px; }
.nav-pills a {
  text-decoration: none;
  color: var(--ink);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
}
.nav-pills a.current {
  background: var(--blue);
  color: #fff;
  font-weight: 700;
}

.banner {
  background: radial-gradient(circle at 20% 20%, #3b82f6 0, transparent 40%), linear-gradient(120deg, #0b3f96, #1563d8 60%, #38bdf8);
  color: #fff;
  padding: 56px 28px 48px;
}
.banner-box { max-width: 1080px; margin: 0 auto; }
.banner h1 { font-size: 36px; line-height: 1.35; margin-bottom: 14px; }
.banner p { max-width: 720px; margin-bottom: 22px; color: #e7f0ff; }
.dl-row { display: flex; flex-wrap: wrap; gap: 10px; }
.pill {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
}
.pill-w { background: #fff; color: var(--blue-d); }
.pill-g { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.55); }

.shell { max-width: 1080px; margin: 0 auto; padding: 36px 20px 64px; }
.shell h2 { font-size: 24px; margin: 40px 0 12px; color: var(--blue-d); }
.shell h2:first-child { margin-top: 0; }
.shell p { margin-bottom: 12px; }
.feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 16px 0 8px;
}
.feat-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px 16px;
}
.feat-card h3 { font-size: 16px; color: var(--blue); margin-bottom: 8px; }
.chip {
  display: inline-block;
  background: var(--chip);
  color: var(--blue-d);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 12px;
  margin-bottom: 8px;
}
table.grid {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  margin: 12px 0 20px;
  font-size: 14px;
}
table.grid th, table.grid td { border: 1px solid var(--line); padding: 10px; text-align: left; }
table.grid th { background: #eef4ff; }
.faq-block { background: #fff; border-radius: 16px; padding: 8px 20px 20px; border: 1px solid var(--line); }
.faq-block dt { margin-top: 16px; font-weight: 700; color: var(--blue-d); }
.faq-block dd { margin: 6px 0 0; color: #334155; }
.cta-band {
  margin-top: 28px;
  background: #fff;
  border: 1px dashed var(--blue);
  border-radius: 16px;
  padding: 20px;
}

.site-end {
  background: #0b3f96;
  color: #d9e6fa;
  padding: 24px 28px;
  font-size: 13px;
  line-height: 1.8;
}
.site-end a { color: #fff; }
.ok { color: #c7dcff; margin-bottom: 8px; }

@media (max-width: 860px) {
  .feat-grid { grid-template-columns: 1fr; }
  .banner h1 { font-size: 26px; }
  .sticky-bar { flex-direction: column; gap: 8px; }
}