:root{font-family:"Noto Sans TC","Microsoft JhengHei",system-ui,sans-serif;color:#1d1f23;background:#f7f6f2}*{box-sizing:border-box}body{margin:0}.skip{position:absolute;top:-5rem;background:#fff;padding:.7rem}.skip:focus{top:0}.topbar{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1.2rem max(1.2rem,calc((100vw - 1120px)/2));background:#fff;border-bottom:1px solid #ebe7e0}.brand{display:flex;gap:.7rem;align-items:center;color:inherit;text-decoration:none}.brand span:not(.mark){display:grid}.brand small{font-size:.74rem;color:#666}.mark{background:#d73f3a;color:white;border-radius:15px;font-weight:800;padding:.55rem .74rem}.topbar nav{display:flex;gap:1rem}.topbar nav a,footer a{color:#3f8f5b;text-decoration:none}main{max-width:1120px;margin:auto;padding:2.6rem 1.2rem 4rem}.intro{max-width:710px;margin-bottom:2.5rem}.eyebrow{font-size:.78rem;font-weight:800;letter-spacing:.2em;color:#3f8f5b}h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.25;margin:.6rem 0}h1 span{color:#d73f3a}p{line-height:1.75;color:#4b4f53}h2{font-size:1.45rem}.plans{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1rem}.plan{cursor:pointer;background:#fff;border:2px solid #e2ded6;padding:1.25rem;border-radius:18px;display:flex;flex-direction:column;gap:.6rem;min-height:180px}.plan:has(input:checked){border-color:#d73f3a;box-shadow:0 0 0 2px #d73f3a19}.plan:has(input:focus-visible){outline:3px solid #3f8f5b;outline-offset:2px}.plan input{align-self:flex-start;accent-color:#d73f3a}.plan .type{font-weight:700;color:#3f8f5b}.plan strong{font-size:1.5rem}.plan small{font-size:.85rem;color:#616569}.plan>span:last-child{color:#5a5f65;font-size:.9rem}.purchase{display:grid;grid-template-columns:1.4fr .9fr;gap:2rem;background:#fff;border:1px solid #ebe6dd;border-radius:22px;margin-top:2rem;padding:1.6rem}.purchase form{display:grid;gap:.7rem;margin-top:1.4rem}.purchase label{font-weight:700}.purchase input{font:inherit;border-radius:10px;padding:.85rem;border:1px solid #9b9f9c;width:100%;max-width:460px}.purchase button{font:inherit;border:none;border-radius:10px;background:#d73f3a;color:#fff;padding:.9rem 1.2rem;font-weight:750;cursor:pointer;max-width:460px}.purchase button:disabled{background:#a5a7aa;cursor:not-allowed}.purchase button.secondary{background:#fff;color:#3f8f5b;border:1px solid #3f8f5b;margin-top:1rem}.purchase aside{background:#f5f8f4;border-radius:16px;padding:1rem 1.2rem}.purchase aside h3{margin-top:0}.purchase aside p{font-size:.91rem}.purchase aside a{color:#3f8f5b}.message{margin-top:1.3rem;min-height:2.2rem;padding:1rem;border-left:3px solid #3f8f5b;background:#fff;border-radius:0 8px 8px 0}footer{border-top:1px solid #e8e4de;padding:1rem 1.2rem;display:flex;justify-content:center;gap:1rem;color:#62656a}@media(max-width:850px){.plans{grid-template-columns:repeat(2,minmax(0,1fr))}.purchase{grid-template-columns:1fr}}@media(max-width:540px){.plans{grid-template-columns:1fr}.topbar{flex-direction:column;align-items:flex-start}.topbar nav{flex-wrap:wrap}main{padding-top:1.4rem}}