:root{color-scheme:light;--ink:#173b51;--blue:#285f85;--muted:#597182;--line:#cbdce5}*{box-sizing:border-box}body{margin:0;background:#e8f2fa;color:var(--ink);font:15px/1.7 system-ui,-apple-system,"Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}header{max-width:900px;margin:auto;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;font-weight:700}.brand img{width:34px;height:34px;border-radius:9px}main{max-width:720px;margin:auto;padding:0 24px}.intro{padding:48px 0 24px}.eyebrow{font-size:12px;letter-spacing:.12em;color:var(--muted)}h1{font-size:46px;line-height:1.25;letter-spacing:-.04em;margin:14px 0 20px}h2{font-size:21px;margin:6px 0 12px}p{margin:8px 0}.intro p{font-size:18px;color:var(--muted)}.download-card{background:#f8fbff;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:0 10px 30px #173b5109}.app-heading{display:flex;align-items:center;gap:18px}.app-heading img{width:78px;height:78px;border-radius:20px}.app-heading h2{margin:0}.app-heading p,.muted,#preview{font-size:13px;color:var(--muted)}.primary,.pending{display:block;background:var(--blue);color:white;text-align:center;border-radius:12px;padding:13px;margin:22px 0 10px;font-size:16px;font-weight:600}.pending{background:#dbe7ef;color:var(--muted)}[hidden]{display:none!important}.primary:hover{background:#174868}a:focus-visible,summary:focus-visible{outline:3px solid #4a90cf;outline-offset:4px}.features{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}.features span{padding:4px 10px;border-radius:6px;background:#e8f2fa;font-size:12px}.guide,.faq{padding:32px 0 12px}ol{padding:0;list-style:none;counter-reset:step}li{counter-increment:step;display:grid;grid-template-columns:32px 1fr;gap:0 12px;margin:18px 0}li:before{content:counter(step);grid-row:span 2;border:1px solid var(--line);width:30px;height:30px;text-align:center;border-radius:50%}li span{grid-column:2;color:var(--muted);font-size:14px}.migration{padding:22px;border-left:3px solid #759fc9;background:#dceaf4;border-radius:0 12px 12px 0;font-size:14px}.migration h2{font-size:18px}.ios{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:30px 0;border-bottom:1px solid var(--line)}.ios h2{font-size:19px}.ios p{font-size:14px;color:var(--muted)}.secondary{border:1px solid var(--line);background:#f8fbff;padding:10px 14px;border-radius:10px;white-space:nowrap;font-size:14px}details{border-bottom:1px solid var(--line);padding:14px 0}summary{cursor:pointer;font-weight:500}details p{font-size:14px;color:var(--muted);padding-top:8px}footer{text-align:center;color:var(--muted);font-size:12px;padding:34px 0}footer a{text-decoration:underline}@media(max-width:420px){header{padding:15px 18px}main{padding:0 18px}.intro{padding-top:30px}h1{font-size:36px}.download-card{padding:20px}.app-heading{gap:12px}.app-heading img{width:62px;height:62px}.app-heading p{font-size:11px}.ios{align-items:flex-start;flex-direction:column}}