:root{color-scheme:light dark;--color-bg: #ffffff;--color-fg: #1a1a1a;--color-muted: #555555;--color-border: #dddddd;--color-accent: #1a4dab;--color-accent-contrast: #ffffff;--color-surface: #f6f7f9}@media(prefers-color-scheme:dark){:root{--color-bg: #121212;--color-fg: #f0f0f0;--color-muted: #b7b7b7;--color-border: #3a3a3a;--color-accent: #7aa6ff;--color-accent-contrast: #0b1220;--color-surface: #1c1c1c}}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;background-color:var(--color-bg);color:var(--color-fg);font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Hiragino Kaku Gothic ProN,Yu Gothic,Segoe UI,sans-serif;line-height:1.8}.page{display:flex;flex-direction:column;min-height:100vh}a{color:var(--color-accent)}a:focus-visible,button:focus-visible{outline:3px solid var(--color-accent);outline-offset:2px}.site-header{padding:1rem 1.25rem;border-bottom:1px solid var(--color-border)}.site-header .logo{font-size:1.25rem;font-weight:700;text-decoration:none;color:var(--color-fg)}main{flex:1;width:100%;max-width:720px;margin:0 auto;padding:2rem 1.25rem 3rem}main section+section{margin-top:2.5rem}h1{font-size:1.75rem;line-height:1.5;margin:0 0 1rem}h2{font-size:1.3rem;line-height:1.5;margin:0 0 .75rem}p{margin:0 0 1rem}ul,ol{padding-left:1.4rem;margin:0 0 1rem}li{margin-bottom:.5rem}.updated-at{color:var(--color-muted);font-size:.9rem}.hero .lead{color:var(--color-muted);font-size:1.05rem}.cta-group{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem;margin:1.5rem 0}.cta-with-note{display:inline-flex;align-items:center;gap:.5rem}button{font:inherit;padding:.7rem 1.25rem;border-radius:6px;border:1px solid var(--color-border);background-color:var(--color-surface);color:var(--color-fg)}button:disabled{opacity:.6;cursor:not-allowed}.cta-note{color:var(--color-muted);font-size:.85rem}.button-link{display:inline-block;padding:.7rem 1.25rem;border-radius:6px;background-color:var(--color-accent);color:var(--color-accent-contrast);text-decoration:none;font-weight:600}.faq dt{font-weight:700;margin-top:1rem}.faq dd{margin:.25rem 0 0;color:var(--color-muted)}.table-scroll{overflow-x:auto}table{border-collapse:collapse;width:100%;min-width:560px}th,td{border:1px solid var(--color-border);padding:.6rem .75rem;text-align:left;vertical-align:top}th{background-color:var(--color-surface)}.site-footer{border-top:1px solid var(--color-border);padding:1.5rem 1.25rem;text-align:center;color:var(--color-muted);font-size:.9rem}.footer-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:.5rem;margin-bottom:.75rem}.copyright{margin:0}@media(max-width:480px){main{padding:1.5rem 1rem 2rem}.cta-group{flex-direction:column;align-items:flex-start}}