:root{font-family:system-ui,-apple-system,"Microsoft JhengHei",sans-serif;color:#edf6f2;background:#101c20;color-scheme:dark;line-height:1.7}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}a:focus-visible,summary:focus-visible{outline:3px solid #a2e4d1;outline-offset:5px}header,main,footer{max-width:1120px;margin:auto;padding:24px}header{display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid #ffffff18}.brand{font-size:28px;color:#addfc9;font-weight:800;white-space:nowrap}.brand span{margin-left:10px;color:#f1f5e7;font-size:20px}nav{display:flex;align-items:center;gap:24px}nav [aria-current]{color:#9be3d3}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(36px,6vw,64px);line-height:1.25;letter-spacing:-1px;max-width:850px}h2{font-size:25px;line-height:1.4}h3{font-size:21px}p,li{color:#bbccc9}.hero{padding:64px 0 48px;background:radial-gradient(ellipse at 95% 5%,#25635a65,transparent 60%)}.eyebrow,.number{color:#99dbc7;font-weight:650}.eyebrow{letter-spacing:2px}.lead{max-width:690px;font-size:20px;line-height:1.9}.button{display:inline-flex;justify-content:center;align-items:center;background:#9fe0cb;color:#102b29;border-radius:14px;padding:15px 28px;font-weight:750;min-height:48px}.button:hover{background:#c3f2e4}.button.small{padding:8px 20px}.subtle{font-size:14px;margin-top:18px;color:#a2b6af}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.features article{border:1px solid #a8d5c52b;background:#1c2b2f;padding:26px;border-radius:20px}.number{display:block;font-size:14px;margin-bottom:20px}.features p{margin-bottom:0}figure{margin:48px 0}figure img{display:block;width:100%;height:auto;border-radius:20px;aspect-ratio:16/9;object-fit:cover}figcaption{font-size:13px;color:#8ba49b;margin-top:10px}.offline-callout,.note{padding:28px;border-radius:20px;background:#183b36;margin:32px 0}.offline-callout a{color:#a7efda;text-decoration:underline;text-underline-offset:5px}.faq{margin:48px 0}.faq details{padding:20px 0;border-bottom:1px solid #a8d5c52b}.faq summary{cursor:pointer;font-size:19px;font-weight:600}.faq p{max-width:850px;margin:16px 0 0}.note{background:#1c2b2f}.note h2{font-size:21px}.note p{margin:0}.note li+li{margin-top:12px}.closing{padding:40px 0 56px}.steps{list-style-position:outside;padding-left:28px;max-width:850px}.steps li{padding:16px 0 12px 12px}.steps h3{color:#e4f2eb}footer{display:flex;flex-wrap:wrap;gap:20px;border-top:1px solid #ffffff18;font-size:14px;padding-bottom:max(28px,env(safe-area-inset-bottom))}footer span{width:100%;color:#8ba49b}@media(max-width:700px){header,main,footer{padding-left:20px;padding-right:20px}header{flex-wrap:wrap}nav{width:100%;gap:20px;font-size:14px}.brand{font-size:25px}.hero{padding-top:42px}.lead{font-size:18px}.features{grid-template-columns:1fr}.features article{padding:22px}.number{margin-bottom:10px}.hero .button{width:100%}.note{padding:22px}}@media(prefers-reduced-motion:no-preference){.button{transition:background .15s}}