:root {
  color-scheme: light;
  --ink: #171a1f;
  --muted: #667085;
  --line: #e7eaf0;
  --primary: #2477f3;
  --navy: #10244a;
  --canvas: #f8f7f3;
  --surface: #ffffff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.75;
}

header {
  color: white;
  background: var(--navy);
}

.nav {
  display: flex;
  gap: 20px;
  align-items: center;
  max-width: 900px;
  margin: 0 auto;
  padding: 16px 24px;
}

.brand { margin-right: auto; color: white; font-weight: 700; text-decoration: none; }
.nav a { color: white; text-decoration: none; font-size: 14px; }

main {
  max-width: 900px;
  margin: 28px auto;
  padding: 34px clamp(20px, 5vw, 56px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
}

h1, h2, h3 { color: var(--navy); line-height: 1.35; }
h1 { margin-top: 0; font-size: clamp(26px, 5vw, 38px); }
h2 { margin-top: 34px; border-bottom: 1px solid var(--line); padding-bottom: 8px; }
a { color: var(--primary); }
table { display: block; width: 100%; overflow-x: auto; border-collapse: collapse; }
th, td { padding: 10px 12px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
blockquote { margin: 20px 0; padding: 12px 16px; color: #8a341d; background: #fff4ed; border-left: 4px solid #f79009; }
.lead { color: var(--muted); font-size: 17px; }
.button { display: inline-block; padding: 12px 18px; color: white; background: var(--primary); border-radius: 12px; text-decoration: none; font-weight: 700; }
.danger { background: #f04438; }
footer { display: flex; gap: 14px; justify-content: center; padding: 22px; color: var(--muted); text-align: center; font-size: 13px; }
.filing-links a { color: inherit; text-decoration: none; }
.filing-links a:hover { text-decoration: underline; }

.home { display: grid; gap: 18px; background: transparent; border: 0; padding: 0 24px; }
.home > section { padding: clamp(24px, 5vw, 48px); background: var(--surface); border: 1px solid var(--line); border-radius: 18px; }
.hero { display: grid; grid-template-columns: minmax(140px, 240px) 1fr; gap: clamp(24px, 6vw, 64px); align-items: center; }
.app-mark { display: block; width: 100%; border-radius: 22%; box-shadow: 0 24px 50px rgba(16, 36, 74, .2); }
.eyebrow { color: var(--primary); font-size: 13px; font-weight: 800; letter-spacing: .16em; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cards article { padding: 18px; background: var(--canvas); border: 1px solid var(--line); border-radius: 14px; }
.cards h3 { margin-top: 0; }
.legal-links { text-align: center; }

@media (max-width: 640px) {
  .nav { gap: 12px; flex-wrap: wrap; }
  .brand { width: 100%; }
  main { margin: 0; border: 0; border-radius: 0; }
  .home { padding: 0; }
  .home > section { border-radius: 0; border-left: 0; border-right: 0; }
  .hero { grid-template-columns: 96px 1fr; align-items: start; }
  .cards { grid-template-columns: 1fr; }
  footer { flex-direction: column; gap: 4px; }
}