@import url('https://fonts.googleapis.com/css2?family=Geist:wght@400;500;600;700;800&display=swap');
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root { --ink: #0a0a0a; --muted: #737373; --line: #e8e8e6; --green: #29a329; }
body { font-family: 'Geist', ui-sans-serif, system-ui, sans-serif; background: #fff; color: var(--ink); font-size: 16px; line-height: 1.7; -webkit-font-smoothing: antialiased; }
.nav { position: sticky; top: 0; background: rgba(255,255,255,.9); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.nav-inner { max-width: 1120px; margin: 0 auto; padding: 0 16px; height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.logo { font-size: 18px; font-weight: 800; letter-spacing: -0.04em; color: var(--ink); text-decoration: none; }
.logo span { color: var(--green); }
.btn { background: var(--ink); color: #fff; text-decoration: none; font-size: 14px; font-weight: 600; padding: 9px 14px; border-radius: 8px; white-space: nowrap; }
.doc { max-width: 720px; margin: 0 auto; padding: 64px 16px 88px; }
.doc h1 { font-size: clamp(32px, 6vw, 46px); font-weight: 800; letter-spacing: -0.045em; line-height: 1.05; margin-bottom: 8px; }
.updated { color: var(--muted); font-size: 14px; margin-bottom: 36px; }
.doc h2 { font-size: 19px; font-weight: 700; letter-spacing: -0.02em; margin: 34px 0 8px; }
.doc p { color: #34322d; margin-bottom: 12px; }
.doc a { color: var(--ink); }
footer { border-top: 1px solid var(--line); padding: 28px 16px; }
.foot { max-width: 1120px; margin: 0 auto; display: flex; gap: 20px; flex-wrap: wrap; justify-content: center; font-size: 13.5px; color: var(--muted); }
.foot a { color: var(--muted); text-decoration: none; }