:root{--green:#1E4A38;--cream:#F7F2E4;--ink:#2C3A30;--muted:#5E6B5E;--line:#E4DBC2;--pink:#F8E8E6}*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Noto Sans TC",sans-serif;line-height:1.85}a{color:var(--green);text-underline-offset:4px}header{max-width:1040px;margin:auto;padding:24px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);gap:16px}header a{text-decoration:none;font-size:14px}.brand{font-weight:800;font-size:20px}.brand small{display:block;font-size:9px;letter-spacing:2px;font-weight:500}main{max-width:1040px;padding:0 24px;margin:auto}h1{font-size:clamp(32px,5vw,56px);line-height:1.4;letter-spacing:-1px;color:var(--green);margin:12px 0 20px}h2{font-size:25px;line-height:1.5;margin:8px 0 16px;color:var(--green)}h3{font-size:19px;margin:0 0 10px}p{margin:0 0 16px}.hero{padding:54px 0 40px}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--muted);font-weight:700}.tags{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0}.tags span{border:1px solid #cbd5c7;border-radius:24px;font-size:13px;padding:4px 12px}.button,button{display:inline-flex;justify-content:center;align-items:center;min-height:48px;border:1px solid var(--green);background:var(--green);color:white;border-radius:10px;padding:12px 18px;font:inherit;font-weight:650;text-decoration:none;cursor:pointer}button:disabled{opacity:.5;cursor:default}.release-grid,.select-grid,.comparison{display:grid;grid-template-columns:1fr 1fr;gap:18px}.release{background:#E9EFE5;padding:26px;border-radius:18px}.release.pink{background:var(--pink)}.release h2{font-size:22px}.release p{font-size:14px;margin-bottom:0}.purchase{margin:40px 0;padding:30px;background:#FFFEFA;border:1px solid var(--line);border-radius:20px}.select-grid label{font-size:14px;font-weight:600}select{display:block;width:100%;font:inherit;border:1px solid var(--line);border-radius:8px;background:white;padding:12px;color:var(--ink);margin-top:6px}.quote{display:flex;flex-direction:column;background:#E9EFE5;border-radius:12px;padding:18px;margin:20px 0}.quote strong{font-size:30px;color:var(--green)}.quote span{font-size:13px}.muted{font-size:13px;color:var(--muted);margin-top:14px}.scope{border-top:1px solid var(--line);padding:32px 0}.comparison article{padding:22px;background:#FFFEFA;border-radius:14px}.comparison p{font-size:14px}.tabs{display:flex;gap:8px;overflow-x:auto;padding:6px 0 12px}.tabs button{flex-shrink:0;background:transparent;color:var(--green);padding:9px 16px;min-height:44px}.tabs button[aria-pressed=true]{background:var(--green);color:white}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:36px}.lesson{padding:24px;background:#FFFEFA;border:1px solid var(--line);border-radius:18px;margin:18px 0}.lesson .player{aspect-ratio:16/9;background:#e9efe5;border-radius:12px;overflow:hidden;margin:18px 0}.player iframe,.player video{width:100%;height:100%;border:0}.waiting{padding:24px;background:#F7F2E4;border-radius:12px;margin:16px 0;color:var(--muted)}#status{color:#9a3a3a;margin-top:20px}footer{text-align:center;border-top:1px solid var(--line);padding:30px 0 40px;font-size:13px;color:var(--muted)}[hidden]{display:none!important}:focus-visible{outline:3px solid #D97B82;outline-offset:3px}@media(max-width:600px){main{padding:0 18px}header{padding:18px}.hero{padding-top:34px}.release-grid,.select-grid,.comparison{grid-template-columns:1fr}.purchase{padding:22px 18px}.release{padding:22px}.lesson{padding:20px 16px}.section-heading{align-items:start}h2{font-size:23px}.button{max-width:100%;width:100%}}