/* Set 6 — app: full-bleed color bands, platform quad, numbered FAQ */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: "Avenir Next", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #fff;
  color: #102033;
  font-size: 16px;
  line-height: 1.7;
}
a { color: #0066ff; }
svg { display: block; }
.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: min(1100px, calc(100% - 28px));
  margin: 0 auto;
  min-height: 64px;
}
.brand { display: flex; gap: 8px; align-items: center; font-weight: 800; font-size: 20px; color: #001a4d; letter-spacing: -0.03em; }
.brand svg { width: 28px; height: 28px; }
nav a {
  text-decoration: none;
  color: #334e68;
  margin-left: 18px;
  font-size: 14px;
  font-weight: 600;
}
nav a.is-current {
  color: #0066ff;
  background: #e8f1ff;
  padding: 6px 10px;
  border-radius: 6px;
}

.band { padding: 48px 0; }
.band-ink { background: #001a4d; color: #e9f1ff; }
.band-soft { background: #eef3ff; }
.band-white { background: #fff; }
.inner { width: min(1100px, calc(100% - 28px)); margin: 0 auto; }
.band h1 {
  font-size: 40px;
  letter-spacing: -0.04em;
  line-height: 1.2;
  margin: 8px 0 18px;
  max-width: 16em;
}
.band h2 { font-size: 26px; letter-spacing: -0.03em; margin-bottom: 14px; color: #001a4d; }
.band-ink h2 { color: #fff; }
.band p { margin-bottom: 12px; max-width: 78ch; }
.band ul, .band ol { margin: 0 0 12px 1.2em; }

.btn {
  display: inline-block;
  background: #0066ff;
  color: #fff;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 700;
  margin: 4px 8px 4px 0;
}
.btn:hover { background: #0052cc; }
.btn-inv { background: #fff; color: #001a4d; }
.btn-inv:hover { background: #d6e4ff; color: #001a4d; }

.platforms {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 20px;
}
.platforms a {
  background: #fff;
  color: #001a4d;
  text-decoration: none;
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 6px 16px rgba(0,26,77,.08);
  font-weight: 700;
}
.platforms a:hover { outline: 2px solid #0066ff; }
.platforms svg { width: 32px; height: 32px; margin-bottom: 8px; color: #0066ff; }
.platforms span { display: block; font-size: 13px; font-weight: 400; color: #4d6480; margin-top: 4px; }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 18px 0;
}
.stats div {
  background: #fff;
  border-radius: 12px;
  padding: 14px;
}
.stats strong { display: block; font-size: 28px; color: #0066ff; letter-spacing: -0.04em; }

.two { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.panel { background: #fff; border-radius: 16px; padding: 18px; }
.panel h3 { font-size: 18px; margin: 8px 0; }
.panel svg { width: 28px; height: 28px; color: #0066ff; }

table { width: 100%; border-collapse: collapse; margin: 12px 0; }
th { text-align: left; padding: 8px; border-bottom: 2px solid #0066ff; }
td { padding: 8px; border-bottom: 1px solid #d5e0f2; }

.faq-n { display: grid; gap: 14px; }
.faq-n article {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 12px;
  align-items: start;
}
.faq-n em {
  font-style: normal;
  font-size: 28px;
  font-weight: 800;
  color: #0066ff;
  letter-spacing: -0.05em;
}
.faq-n h3 { font-size: 17px; margin-bottom: 6px; }

.site-footer {
  background: #0a1220;
  color: #b7c4d6;
  padding: 24px 0 32px;
  font-size: 13px;
}
.site-footer p { margin-bottom: 8px; }

@media (max-width: 860px) {
  .platforms, .stats, .two, .faq-n article { grid-template-columns: 1fr; }
  .band h1 { font-size: 28px; }
  .top { flex-direction: column; align-items: flex-start; padding: 12px 0; gap: 8px; }
  nav a { margin: 0 12px 0 0; }
}