:root {
  color-scheme: light;
  --ink: #17211e;
  --muted: #5f6c67;
  --line: #dce3e0;
  --paper: #ffffff;
  --soft: #f2f6f4;
  --brand: #155b49;
  --accent: #d9584d;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

a { color: var(--brand); }

.site-header {
  position: sticky;
  z-index: 10;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.96);
}

.nav {
  display: flex;
  width: min(1080px, calc(100% - 32px));
  min-height: 64px;
  margin: 0 auto;
  align-items: center;
  gap: 22px;
}

.brand {
  display: flex;
  margin-right: auto;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
}

.brand img { width: 38px; height: 38px; border-radius: 8px; }
.nav-link { color: var(--muted); text-decoration: none; font-size: 14px; }
.nav-link:hover, .nav-link:focus-visible { color: var(--brand); }

.hero {
  display: grid;
  width: min(1080px, calc(100% - 32px));
  min-height: 68vh;
  margin: 0 auto;
  padding: 72px 0 52px;
  grid-template-columns: 1fr 300px;
  align-items: center;
  gap: 72px;
}

.hero-logo { width: 260px; height: 260px; border-radius: 48px; box-shadow: 0 18px 44px rgba(23,33,30,.14); }
.eyebrow { margin: 0 0 10px; color: var(--accent); font-size: 14px; font-weight: 700; }
h1 { margin: 0; font-size: 54px; line-height: 1.15; }
.lead { max-width: 670px; margin: 22px 0 0; color: var(--muted); font-size: 19px; }
.meta { margin-top: 24px; color: var(--muted); font-size: 14px; }

.band { border-top: 1px solid var(--line); background: var(--soft); }
.content { width: min(920px, calc(100% - 32px)); margin: 0 auto; padding: 58px 0; }
.content.narrow { width: min(760px, calc(100% - 32px)); }
.content h2 { margin: 0 0 18px; font-size: 30px; line-height: 1.3; }
.content h3 { margin: 38px 0 10px; font-size: 20px; line-height: 1.4; }
.content p, .content li { color: #34413c; }
.content table { width: 100%; border-collapse: collapse; font-size: 14px; }
.content th, .content td { padding: 12px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.content th { background: var(--soft); }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.feature { min-height: 170px; padding: 26px; background: var(--paper); }
.feature h3 { margin: 0 0 8px; }
.feature p { margin: 0; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; min-height: 44px; padding: 8px 18px; align-items: center; justify-content: center; border: 1px solid var(--brand); border-radius: 6px; color: var(--brand); font-weight: 700; text-decoration: none; }
.button.primary { color: #fff; background: var(--brand); }
.notice { padding: 16px 18px; border-left: 4px solid var(--accent); background: #fff7f5; }
.legal-meta { padding-bottom: 18px; border-bottom: 1px solid var(--line); color: var(--muted); }
.footer { border-top: 1px solid var(--line); }
.footer-inner { display: flex; width: min(920px, calc(100% - 32px)); margin: 0 auto; padding: 28px 0 36px; gap: 18px; flex-wrap: wrap; color: var(--muted); font-size: 13px; }
.footer a { color: var(--muted); }

@media (max-width: 760px) {
  .nav { gap: 14px; overflow-x: auto; }
  .nav-link { white-space: nowrap; }
  .hero { min-height: 66vh; padding: 52px 0 40px; grid-template-columns: 1fr; gap: 34px; }
  .hero-logo { width: 168px; height: 168px; grid-row: 1; border-radius: 32px; }
  h1 { font-size: 40px; }
  .lead { font-size: 17px; }
  .features { grid-template-columns: 1fr; }
  .content { padding: 40px 0; }
  .content table { display: block; overflow-x: auto; }
}