:root{color-scheme:light;--paper:#f5f7f2;--surface:#fffefa;--surface-2:#eef2ec;--sage:#dceadf;--ink:#18231d;--ink-2:#435048;--ink-3:#667269;--line:#d9e0d8;--line-strong:#c7d1c7;--accent:#316645;--accent-dark:#244b36;color:var(--ink);background:var(--paper);font-family:system-ui,-apple-system,Segoe UI,Noto Sans SC,PingFang SC,Microsoft YaHei,sans-serif}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);margin:0;line-height:1.6}h1,h2,h3{letter-spacing:-.03em;margin:0;font-weight:700;line-height:1.1}html[lang=zh-Hans] :is(h1,h2,h3){letter-spacing:0}p{margin:0 0 1em}a{color:inherit;text-underline-offset:3px}img{max-width:100%;height:auto;display:block}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}:is(a,button,input,select,textarea,[tabindex]):focus-visible{outline:3px solid 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12px;font-size:.78rem;font-weight:700}.lede{max-width:64ch;color:var(--ink-2);margin:0;font-size:1.04rem;line-height:1.7}.faq-list{border-top:1px solid var(--line);margin-top:8px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{cursor:pointer;padding:16px 30px 16px 0;font-weight:600;list-style:none;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";color:var(--accent);font-size:1.2rem;position:absolute;top:14px;right:4px}.faq-list details[open] summary:after{content:"−"}.faq-list details p{max-width:76ch;color:var(--ink-2);margin:0;padding:0 0 18px;line-height:1.7}.app-note{background:var(--accent-dark);color:#f2fbf4;border-radius:16px;justify-content:space-between;align-items:center;gap:28px;margin:8px 0 12px;padding:30px 34px;display:flex}.app-note h2{color:inherit;margin-bottom:10px;font-size:1.5rem}.app-copy p{color:#f2fbf4d9;max-width:62ch;margin:0 0 16px}.app-note 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nav{gap:16px;font-size:.88rem}.footer-inner{grid-template-columns:1fr;gap:24px;padding:28px 18px 38px}.legal-page,.not-found{padding-left:18px;padding-right:18px}.app-note{flex-direction:column-reverse;align-items:flex-start;padding:24px}.app-icon{width:84px;height:84px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}