:root {
  --bg: #fffdf8;
  --fg: #2b2b2b;
  --muted: #6b6b6b;
  --brand: #ff7a45;
  --brand-soft: #fff1e9;
  --line: #ececec;
  --max: 820px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.75;
  font-size: 16px;
}
.wrap { max-width: var(--max); margin: 0 auto; padding: 32px 20px 64px; }
header.site {
  border-bottom: 1px solid var(--line);
  background: #fff;
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; }
.logo { font-size: 20px; font-weight: 700; color: var(--brand); text-decoration: none; }
.nav a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 14px; }
.nav a:hover { color: var(--brand); }
h1 { font-size: 28px; margin: 8px 0 16px; }
h2 { font-size: 20px; margin: 36px 0 10px; color: #1f1f1f; border-left: 4px solid var(--brand); padding-left: 10px; }
h3 { font-size: 16px; margin: 22px 0 6px; color: #333; }
p, li { color: #333; }
.small { color: var(--muted); font-size: 14px; }
.hero { text-align: center; padding: 40px 0 16px; }
.hero .badge { display: inline-block; background: var(--brand-soft); color: var(--brand); border-radius: 999px; padding: 6px 14px; font-size: 13px; margin-bottom: 14px; }
.hero h1 { margin: 0 0 8px; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin: 28px 0; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.card .t { font-weight: 600; margin-bottom: 6px; }
.card .d { color: var(--muted); font-size: 14px; }
.cta { text-align: center; margin: 28px 0; }
.btn { display: inline-block; background: var(--brand); color: #fff; text-decoration: none; border-radius: 10px; padding: 12px 22px; font-weight: 600; }
.btn.ghost { background: #fff; color: var(--brand); border: 1px solid var(--brand); }
ul { padding-left: 22px; }
a.inline { color: var(--brand); }
footer.site { border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
footer.site .wrap { padding: 22px 20px; }
.notice { background: var(--brand-soft); border: 1px solid #ffd8c2; color: #b34700; border-radius: 10px; padding: 12px 14px; font-size: 14px; margin: 18px 0; }
table.meta { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 14px; }
table.meta td { border: 1px solid var(--line); padding: 8px 10px; vertical-align: top; }
table.meta td:first-child { background: #fafafa; color: var(--muted); width: 140px; }