:root{color-scheme:light dark;--ink:#202b39;--muted:#586577;--ground:#f6f8fc;--paper:#fff;--line:#d8e1ed;--blue:#1761cc;--green:#258151}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--ground);color:var(--ink);font:17px/1.85 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:inherit;text-underline-offset:4px}a:hover{color:var(--blue)}a:focus-visible{outline:3px solid var(--blue);outline-offset:5px}header,main,footer{max-width:1060px;margin:auto;padding:28px 32px}header{display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:13px;text-decoration:none;font-weight:750;font-size:23px;white-space:nowrap}.brand img{border-radius:13px}nav{display:flex;flex-wrap:wrap;gap:20px;font-size:14px}nav a{text-decoration:none;min-height:44px;display:inline-flex;align-items:center}nav [aria-current=page]{text-decoration:underline;text-decoration-color:var(--green);text-decoration-thickness:3px}main{padding-top:62px;padding-bottom:60px;min-height:65vh}.eyebrow{font-size:12px;letter-spacing:.16em;color:var(--muted);margin:0 0 18px}h1{font-size:clamp(34px,5vw,56px);line-height:1.2;letter-spacing:-.035em;max-width:900px;margin:0 0 18px}h2{font-size:22px;line-height:1.5;margin:28px 0 12px}p{margin:12px 0}.subtitle{color:var(--muted);margin-bottom:42px}.intro{display:flex;gap:36px;align-items:center;margin:44px 0 54px}.intro h2{font-size:28px;margin-top:0}.hero-icon{flex-shrink:0;border-radius:35px}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;border-top:1px solid var(--line);padding-top:18px}.features p,.privacy-note{font-size:15px}.callout{border-left:3px solid var(--green);padding:12px 22px;margin:38px 0 26px}.privacy-note{max-width:840px;color:var(--muted)}article{max-width:850px;overflow-wrap:anywhere}article[lang=en]{margin-top:56px;padding-top:24px;border-top:1px solid var(--line)}[lang=en]{color:var(--muted)}.contents{display:flex;gap:24px;margin-bottom:32px}.contents a{padding:6px 0;min-height:44px}footer{border-top:1px solid var(--line);font-size:14px;color:var(--muted);display:flex;justify-content:space-between;gap:20px}@media(max-width:760px){header{align-items:flex-start;flex-direction:column;gap:12px}}@media(max-width:650px){header,main,footer{padding-left:22px;padding-right:22px}nav{gap:18px;font-size:13px}main{padding-top:42px}.intro{flex-direction:column;align-items:flex-start;gap:25px}.hero-icon{width:120px;height:120px;border-radius:28px}.features{grid-template-columns:1fr;gap:12px}.features article{border-bottom:1px solid var(--line);padding-bottom:18px}.features h2{margin-top:12px}footer{flex-direction:column;gap:0}h2{font-size:21px}}@media(prefers-color-scheme:dark){:root{--ink:#edf3fc;--muted:#bac8dc;--ground:#121c2a;--paper:#1d2b3d;--line:#34475f;--blue:#8bbbff;--green:#6dc396}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}