:root{color-scheme:dark;--bg:#111813;--panel:#1b251e;--line:#334237;--text:#edf3ea;--muted:#a8b7aa;--accent:#c4f3a4}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px}body{margin:0;background:var(--bg);color:var(--text);font-family:"Segoe UI","Microsoft JhengHei",system-ui,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.nav,main,footer{max-width:1180px;margin:auto}.nav{padding:24px 32px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.brand{font-weight:800;font-size:23px;letter-spacing:-.5px;display:flex;align-items:center;gap:10px}.brand-icon{background:var(--accent);color:#1d3417;border-radius:7px;font-size:19px;padding:0 8px}.nav nav{display:flex;align-items:center;gap:28px;font-size:14px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:20px;border:1px solid #586854;padding:13px 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textarea{min-height:105px;resize:vertical}.brief button{margin-top:15px}.faq{max-width:850px;padding-bottom:70px}.faq details{border-bottom:1px solid var(--line);padding:16px 0}.faq summary{cursor:pointer;font-weight:600}.faq details p{font-size:14px}footer{border-top:1px solid var(--line);padding:30px 32px;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted)}.legal{max-width:800px;padding:50px 32px;min-height:80vh}.legal h1{font-size:36px}.legal p,.legal li{color:var(--muted)}:focus-visible{outline:2px solid var(--accent);outline-offset:4px}@media(max-width:800px){.hero{grid-template-columns:1fr;padding:50px 24px;gap:30px}.hero-copy{max-width:560px}.preview{transform:none;max-width:550px}.nav{padding:18px 24px}.nav nav{gap:14px}.nav nav>a:not(.button){display:none}.promise{margin:0 24px;gap:20px}.section{padding:50px 24px 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