:root {
  --primary: #18b67a;
  --primary-deep: #0e8a5c;
  --brand-dark: #10251e;
  --bg: #f7f9f8;
  --surface: #ffffff;
  --text: #10251e;
  --text-secondary: #4d6157;
  --border: #e1e8e4;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
.page { max-width: 760px; margin: 0 auto; padding: 32px 20px 64px; }
.hero { text-align: center; padding: 24px 0 8px; }
.logo { max-width: 260px; width: 100%; height: auto; }
.tagline { color: var(--text-secondary); font-size: 1.05rem; max-width: 520px; margin: 12px auto 0; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 24px 28px; margin-top: 24px; }
h1 { font-size: 2rem; line-height: 1.2; margin: 24px 0 8px; }
h2 { font-size: 1.25rem; margin: 28px 0 8px; color: var(--brand-dark); }
h3 { font-size: 1.05rem; margin: 20px 0 6px; }
p, li { color: var(--text); }
a { color: var(--primary-deep); }
.meta { color: var(--text-secondary); font-size: 0.95rem; }
.footer { text-align: center; color: var(--text-secondary); margin-top: 40px; font-size: 0.9rem; }
.notice { background: #e4f7ee; border-radius: 12px; padding: 12px 16px; color: var(--brand-dark); }
table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 0.95rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--text-secondary); font-weight: 600; }
code { background: #eef3f0; padding: 1px 6px; border-radius: 6px; font-size: 0.92em; }