:root{--mango:#ffc928;--amber:#f29b16;--cream:#fff7df;--paper:#fffdf7;--ink:#34281e;--muted:#716354;--line:#06c755;--tg:#229ed9;--border:rgba(52,40,30,.12);--shadow:0 20px 60px rgba(65,45,20,.11);--max:1120px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}p,h1,h2,h3{margin:0}ul,ol{margin:0;padding:0;list-style:none}.nav{position:sticky;top:0;z-index:20;background:rgba(255,253,247,.91);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}.nav-inner{height:72px;max-width:var(--max);margin:auto;padding:0 24px;display:flex;align-items:center;gap:34px}.brand{display:flex;align-items:center;gap:9px;font-size:1.12rem;font-weight:900;white-space:nowrap}.brand span{font-size:1.45rem}.nav-links{display:flex;gap:28px;margin-left:auto}.nav-links 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@media(max-width:850px){.nav-links,.nav-action{display:none}.nav-toggle{margin-left:auto;display:flex;width:34px;height:32px;border:0;background:transparent;flex-direction:column;justify-content:center;gap:5px}.nav-toggle span{height:2px;width:100%;background:var(--ink)}.nav-mobile.open{display:flex;flex-direction:column;padding:6px 24px 18px}.nav-mobile a{padding:9px;font-weight:800}.hero{grid-template-columns:1fr;padding-top:55px}.conversation{max-width:520px;width:100%;margin:auto;transform:none}.feature-grid,.platform-grid,.pricing-grid,.faq-section,.start-grid,.usage-grid{grid-template-columns:1fr}.feature-large{grid-row:auto}.steps{grid-template-columns:1fr;gap:38px}.price-card.featured{transform:none}.faq-section{gap:10px}.usecase-grid{grid-template-columns:1fr}.mobile-cta{display:block;position:fixed;z-index:19;bottom:0;left:0;right:0;background:var(--ink);color:#fff;text-align:center;padding:14px;font-weight:900}footer{grid-template-columns:1fr;text-align:center}footer>*{margin:auto}footer>p,footer small{text-align:center}footer nav{justify-content:center;flex-wrap:wrap}}@media(max-width:560px){.hero{padding-inline:20px;gap:45px}h1{font-size:3.1rem}.section{padding:78px 20px}.platform-strip div{gap:13px;flex-wrap:wrap}.platform-strip span{width:100%}.feature-card,.platform-card,.price-card{padding:27px}.trust-row{display:grid}.hero-actions{align-items:flex-start;flex-direction:column}.conversation{border-radius:24px}.chat-body{min-height:325px}.start-grid article{grid-template-columns:auto 1fr}.qr-area{flex-direction:column}.qr-area p{text-align:center}.steps-section{padding-inline:20px}}
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