:root{color-scheme:dark;--bg:#13201f;--surface:#1b2c2a;--mint:#73cab1;--text:#f0f4ef;--muted:#b0c4bd;--line:#344b44;--ink:#10241d}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC",sans-serif;line-height:1.75}a{color:inherit;text-underline-offset:5px}a:hover{color:var(--mint)}a:focus-visible,summary:focus-visible{outline:3px solid var(--mint);outline-offset:5px}.wrap{max-width:1120px;margin:auto;padding-inline:32px}.skip{position:absolute;left:16px;top:-100px;background:var(--mint);color:var(--ink);padding:8px 16px;z-index:5}.skip:focus{top:12px}.header{display:flex;align-items:center;justify-content:space-between;padding-block:26px}.brand{display:flex;align-items:center;gap:12px;font-size:20px;font-weight:700;text-decoration:none}.brand img{border-radius:10px}.header nav{display:flex;gap:28px;font-size:14px}.header nav a{text-decoration:none}.hero{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:80px;padding-block:78px 108px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.15em;color:var(--mint);margin:0 0 20px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(42px,5.5vw,68px);letter-spacing:-.05em;line-height:1.3;margin-bottom:26px}h2{font-size:clamp(26px,3vw,36px);line-height:1.4;letter-spacing:-.03em;margin-bottom:20px}h3{font-size:22px;line-height:1.4;margin-block:20px 12px}.intro{font-size:18px;color:var(--muted);line-height:1.9}.actions{display:flex;align-items:center;gap:28px;flex-wrap:wrap;margin-block:30px 20px}.button{display:inline-flex;justify-content:center;align-items:center;gap:32px;background:var(--mint);color:var(--ink);text-decoration:none;font-weight:700;padding:12px 24px;border-radius:12px}.button:hover{background:#9fddc8;color:var(--ink)}.text-link{font-size:14px}.small{font-size:12px;color:var(--muted)}.preview{background:var(--surface);border:1px solid var(--line);border-radius:32px;padding:30px;box-shadow:0 30px 80px #0003;transform:rotate(2deg)}.preview-top{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:var(--muted)}.pill{border:1px solid var(--line);border-radius:99px;padding:2px 10px}.island{display:flex;align-items:center;justify-content:space-between;background:#070c0a;border-radius:28px;margin:22px auto 36px;padding:12px 20px;font-size:12px;max-width:260px}.wave{color:var(--mint)}.song h2{font-size:25px;margin-bottom:0}.song p{font-size:13px;color:var(--muted)}.song .eyebrow{font-size:10px}.lyric-demo{margin-block:34px}.lyric-demo p{font-size:17px;margin-bottom:14px}.lyric-demo .current{font-size:20px;font-weight:700;color:var(--mint)}.muted{color:var(--muted);opacity:.65}.progress{height:3px;background:var(--line);border-radius:9px}.progress span{display:block;height:100%;width:35%;background:var(--mint)}.time{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);margin-top:8px}.delay-demo{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:22px;margin-top:28px;font-size:12px}.delay-demo strong{color:var(--mint);font-variant-numeric:tabular-nums}.features{padding-block:60px 85px;border-top:1px solid var(--line)}.section-heading{margin-bottom:44px}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}.number{font-size:12px;color:var(--mint)}.feature-grid p{font-size:15px;color:var(--muted)}.activity-section{display:grid;grid-template-columns:140px 1fr;gap:52px;align-items:start;padding-block:64px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.activity-section img{border-radius:28px}.activity-section p{max-width:720px;color:var(--muted)}.activity-section .eyebrow{color:var(--mint)}.notice{border-left:2px solid var(--mint);padding-left:18px;font-size:13px;margin-top:24px}.getting-started{display:grid;grid-template-columns:1fr 1fr;gap:80px;padding-block:90px}.getting-started ol{margin:0;padding-left:20px}.getting-started li{padding-left:12px;margin-bottom:24px;color:var(--mint)}.getting-started strong{display:block;color:var(--text);font-size:17px}.getting-started span{display:block;color:var(--muted);font-size:14px}.help-strip{padding-block:50px 65px;border-top:1px solid var(--line)}.help-strip p{color:var(--muted)}.footer{border-top:1px solid var(--line);padding-block:28px 40px;font-size:12px;color:var(--muted);display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px}.footer div{display:flex;gap:24px}.footer p{flex-basis:100%;font-size:11px;margin:0}.document{max-width:840px;padding-block:50px 80px}.document h1{font-size:42px;margin-bottom:20px}.document .lead{font-size:18px;color:var(--muted)}.document section{margin-top:38px}.document section h2{font-size:23px}.document p,.document li{color:var(--muted)}.document strong{color:var(--text)}.document li{margin-bottom:10px}.document table{width:100%;border-collapse:collapse;font-size:14px}.document th,.document td{text-align:left;padding:16px 12px;border-bottom:1px solid var(--line);vertical-align:top}.document th{color:var(--mint)}.document td{color:var(--muted)}.document code{font-size:.9em;overflow-wrap:anywhere;background:var(--surface);padding:3px 7px;border-radius:5px}.contact{background:var(--surface);border:1px solid var(--line);padding:28px;border-radius:20px}.contact .button{margin-top:12px}details{border-bottom:1px solid var(--line);padding-block:18px}summary{cursor:pointer;font-weight:650}details p{margin:12px 0 0;padding-left:4px}.table-scroll{overflow-x:auto}.document ul{padding-left:23px}.last-updated{font-size:13px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:28px}.crumb{color:var(--mint);font-size:13px;display:inline-block;margin-bottom:24px}.document .eyebrow{color:var(--mint)}
@media(max-width:760px){.wrap{padding-inline:24px}.header{padding-block:20px}.header nav{gap:18px;font-size:13px}.hero{grid-template-columns:1fr;gap:44px;padding-block:42px 60px}.preview{transform:none;max-width:460px;width:100%;margin:auto;padding:26px}.feature-grid{grid-template-columns:1fr;gap:22px}.features{padding-block:44px}.feature-grid article{border-top:1px solid var(--line);padding-top:25px}.activity-section{grid-template-columns:1fr;gap:25px;padding-block:44px}.activity-section img{width:80px;height:80px;border-radius:20px}.getting-started{grid-template-columns:1fr;gap:20px;padding-block:50px}.help-strip{padding-block:40px}.document{padding-block:30px 55px}.document h1{font-size:34px}.document table{min-width:560px}.footer{gap:20px}.intro br{display:none}.brand{font-size:18px;gap:8px}.brand img{width:32px;height:32px}.actions{gap:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}