:root{color-scheme:light;--bg:#faf9f7;--ink:#141414;--sub:#666560;--line:#ededeb;--soft:#f1f0ed;--accent:#ff7a00}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:32px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit}
a:focus-visible,button:focus-visible,[tabindex]:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:6px;border-radius:3px}
.skip-link{position:absolute;left:16px;top:-80px;z-index:2;background:var(--ink);color:white;padding:12px 20px}
.skip-link:focus{top:8px}
.preview-notice{text-align:center;background:var(--soft);color:var(--sub);font-size:11px;line-height:1.6;padding:8px 16px;letter-spacing:.05em}
.page{max-width:1032px;margin:auto;padding:0 44px}
.header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:30px 0}
.brand{display:inline-flex;align-items:center;gap:11px;font-size:21px;font-weight:650;letter-spacing:-.7px}
.brand img{display:block;border-radius:10px}
.header nav{font-size:13px;color:var(--sub);white-space:nowrap}
.header nav a{display:block;padding:10px 0}
.header nav span{margin-left:6px}
.header a:hover{color:var(--ink)}
.header.site-header{position:sticky;top:0;z-index:10;background:var(--bg);padding:26px 0;border-bottom:1px solid var(--line)}
.header .site-nav{display:flex;align-items:center;gap:24px}
.header .site-nav a{display:flex;align-items:center;min-height:44px;padding:8px 0}
.download-page main section[id],.download-page .download[id]{scroll-margin-top:80px}
.hero{display:grid;grid-template-columns:minmax(0,1fr) 280px;align-items:center;gap:100px;padding:44px 24px 64px 0}
.eyebrow{display:flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.13em;margin:0 0 23px;color:var(--sub)}
.eyebrow span{width:6px;height:6px;border-radius:50%;background:var(--accent)}
h1{font-size:clamp(36px,5.2vw,58px);font-weight:700;line-height:1.28;letter-spacing:-1.8px;margin:0 0 28px}
.intro{font-size:14px;line-height:1.95;color:var(--sub);margin:0}
.download{margin-top:88px}
.download-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;padding:16px 26px;border:0;border-radius:14px;background:var(--ink);color:white;font-size:14px;font-weight:600;min-height:52px;cursor:pointer}
.download-button:hover{background:#333}
.download-note{font-size:11px;line-height:1.7;color:var(--sub);margin:11px 0 0}
.integrity{max-width:320px;margin-top:14px;border-bottom:0}
.integrity summary{font-size:11px;color:var(--sub);min-height:32px;padding:6px 0!important;font-weight:400;gap:12px}
.integrity .answer{padding:8px 0;font-size:11px}
.integrity code{display:block;font-size:10px;line-height:1.8;overflow-wrap:anywhere;user-select:all}
.license-note{font-size:11px;color:var(--sub);line-height:1.7;margin:25px 0 0}
.app-figure{margin:0;justify-self:center;width:270px;max-width:100%}
.showcase-track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;border-radius:8px;overscroll-behavior-x:contain}
.showcase-track::-webkit-scrollbar{display:none}.showcase-slide{flex:0 0 100%;min-width:0;scroll-snap-align:start}
.showcase-slide img{display:block;width:100%;height:auto;aspect-ratio:1284/2778;object-fit:contain}
.showcase-controls{display:flex;align-items:center;justify-content:center;gap:9px;margin-top:10px}.showcase-controls[hidden]{display:none}
.showcase-dots{display:flex;align-items:center}.showcase-controls button{display:grid;place-items:center;padding:0;border:0;background:transparent;color:var(--sub);cursor:pointer;width:24px;height:32px}
.showcase-dots span{display:block;width:5px;height:5px;border-radius:50%;background:#cecdc8}.showcase-dots [aria-current="true"] span{background:var(--ink);width:7px;height:7px}
.showcase-controls .showcase-playback{width:30px;font-size:12px;border-left:1px solid var(--line);padding-left:6px}
figcaption{font-size:10px;color:var(--sub);text-align:center;margin-top:14px;letter-spacing:.04em}
.product-guide{border-top:1px solid var(--line);padding:44px 0 46px}
.product-overview{display:grid;grid-template-columns:1fr 1.5fr;gap:64px;align-items:center}
.product-overview h2{font-size:26px;font-weight:600;line-height:1.55;letter-spacing:-.6px;margin:0}
.product-overview>p{font-size:14px;line-height:1.95;color:var(--sub);margin:0;max-width:440px}
.steps-title{font-size:14px;font-weight:550;margin:34px 0 22px}
.steps{list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;padding:0;margin:0}
.steps li{min-width:0}.step-copy{display:flex;align-items:flex-start;gap:13px}.step-image{display:block;width:100%;max-width:210px;margin:20px auto 0}.step-image img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:12px}
.steps li+li{border-left:1px solid var(--line);padding-left:28px}
.step-number{font-size:12px;line-height:26px;color:var(--accent);font-variant-numeric:tabular-nums}
.steps h4{font-size:16px;font-weight:550;line-height:1.6;margin:0 0 7px}
.steps p{font-size:12px;line-height:1.85;color:var(--sub);margin:0}
.help{border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1.5fr;gap:64px;padding:40px 0 38px}
.section-heading h2{font-size:24px;letter-spacing:-.6px;font-weight:600;margin:0 0 10px;line-height:1.4}
.section-heading p{font-size:12px;line-height:1.7;color:var(--sub);margin:0}
details{border-bottom:1px solid var(--line)}
summary{display:flex;align-items:center;justify-content:space-between;gap:16px;list-style:none;cursor:pointer;min-height:52px;font-size:13px;font-weight:550;line-height:1.6;padding:14px 1px}
details:first-child summary{padding-top:0;min-height:38px}
summary::-webkit-details-marker{display:none}
.toggle{width:12px;height:12px;position:relative;flex-shrink:0;color:var(--sub)}
.toggle:before,.toggle:after{content:"";position:absolute;background:currentColor;top:5px;left:0;width:12px;height:1px}
.toggle:after{transform:rotate(90deg)}
details[open] .toggle:after{transform:rotate(0)}
.answer{padding:0 24px 15px 1px;color:var(--sub);font-size:12px;line-height:1.9}
.answer p{margin:0 0 8px}
.answer p:last-child{margin:0}
.answer a{text-decoration:underline;text-underline-offset:3px}
.release-notes{max-width:360px;margin-top:14px;color:var(--sub);font-size:12px;line-height:1.8}
.release-label{margin:0 0 4px}
.release-notes ul,.release-notes ol{margin:0;padding-left:17px}
.contact{border-top:1px solid var(--line);padding:40px 0}
.contact-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin:22px 0 0}
.contact-list div{min-width:0}.contact-list dt{font-size:12px;line-height:1.7;color:var(--sub);margin-bottom:6px}
.contact-list dd{margin:0;font-size:14px;line-height:1.8;overflow-wrap:anywhere;user-select:all}
.footer{border-top:1px solid var(--line);padding:24px 0 32px;font-size:11px;color:var(--sub)}
.footer-top{display:flex;justify-content:space-between;align-items:center;gap:20px}
.copyright{white-space:nowrap}
.filing{margin:18px 0 0;text-align:center;line-height:1.8}.filing a:hover{text-decoration:underline;text-underline-offset:3px}
.documents{display:flex;flex-wrap:wrap;gap:18px;line-height:1.8}
.documents small{font-size:10px;color:var(--sub);margin-left:3px}
.documents a:hover{text-decoration:underline;text-underline-offset:4px}
.legal-page{max-width:800px}.legal-page .header{border-bottom:1px solid var(--line)}
.legal-context{font-size:12px;line-height:1.8;color:var(--sub);margin:30px 0}
.legal-content{padding-bottom:32px;font-size:14px;line-height:1.95;overflow-wrap:anywhere}
.legal-content h1{font-size:28px;letter-spacing:-.5px;line-height:1.5;margin:30px 0 20px}
.legal-content h2{font-size:19px;line-height:1.6;margin:32px 0 14px;font-weight:600}
.legal-content h3{font-size:16px;line-height:1.7;margin:24px 0 10px;font-weight:600}
.legal-content ul,.legal-content ol{padding-left:23px}.legal-source{font-size:12px;color:var(--sub);margin:0 0 30px}
.legal-source a{text-decoration:underline;text-underline-offset:3px}
@media(min-width:900px){.hero-copy{animation:arrive .5s ease-out both}.app-figure{animation:arrive .6s .08s ease-out both}}
@keyframes arrive{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:801px) and (max-width:1000px){.hero{grid-template-columns:minmax(0,1fr) 240px;gap:40px}.app-figure{width:230px}}
@media(max-width:800px){.page{padding:0 30px}.hero{gap:32px;padding:32px 0 46px;grid-template-columns:minmax(0,1fr) 196px}.app-figure{width:196px}.showcase-controls{gap:2px}.showcase-controls button{width:21px}.showcase-controls .showcase-playback{width:24px}h1{font-size:clamp(31px,4.6vw,36px);letter-spacing:-1px}.intro{font-size:13px}.desktop-break{display:none}.help{gap:36px;grid-template-columns:1fr 1.5fr}.footer-top{align-items:flex-start}.documents{gap:8px 15px}}
@media(max-width:800px){.product-overview{gap:36px}.product-overview h2{font-size:23px}.product-overview>p{font-size:13px}.steps{gap:16px}.steps li+li{padding-left:16px}}
@media(max-width:580px){.product-guide{padding:30px 0 32px}.product-overview{grid-template-columns:minmax(0,1fr);gap:17px}.product-overview h2{font-size:23px}.steps-title{margin:25px 0 19px}.steps{grid-template-columns:minmax(0,1fr);gap:18px}.step-copy{gap:15px}.step-image{max-width:210px;margin-top:16px}.steps{gap:30px}.steps li+li{border-left:0;padding-left:0}.steps h4{font-size:15px;margin-bottom:3px}}
@media(max-width:580px){html{scroll-padding-top:24px}.page{padding:0 24px}.header{padding:22px 0;gap:12px}.brand{font-size:18px;gap:8px;letter-spacing:-.6px}.brand img{width:30px;height:30px;border-radius:8px}.header nav{font-size:11px}.header nav span{display:none}.hero{grid-template-columns:minmax(0,1fr);gap:32px;padding:24px 0 36px}.eyebrow{font-size:11px;margin-bottom:17px}h1{font-size:clamp(30px,8.9vw,36px);line-height:1.32;margin-bottom:24px}.intro{font-size:13px;line-height:1.9}.download{margin-top:56px}.download-button{width:100%;font-size:14px}.download-note{text-align:center}.license-note{text-align:center;margin-top:17px}.app-figure{width:250px}.showcase-controls{gap:9px}.showcase-controls button{width:24px}.showcase-controls .showcase-playback{width:30px}.screenshot-frame{border-radius:19px;border-width:3px}figcaption{margin-top:10px}.help{grid-template-columns:minmax(0,1fr);gap:25px;padding:30px 0}.section-heading h2{font-size:23px;margin-bottom:7px}.help-content{min-width:0}.footer{padding:22px 0 28px}.footer-top{display:block}.documents{margin-top:13px;gap:7px 18px}.documents small{font-size:10px}}
@media(max-width:350px){.page{padding:0 20px}.brand{font-size:16px}.header nav{font-size:10px}h1{font-size:31px}.intro{font-size:12px}.documents{gap:7px 13px}}
@media(max-width:580px){.contact{padding:30px 0}.contact-list{grid-template-columns:minmax(0,1fr);gap:18px;margin-top:20px}.contact-list dt{margin-bottom:2px}}
@media(max-width:800px){.header .site-nav{gap:18px}}
@media(max-width:580px){.header.site-header{flex-wrap:wrap;padding:14px 0 8px;gap:8px}.header .site-nav{width:100%;justify-content:space-between;gap:8px;font-size:11px}.header .site-nav a{min-height:44px}.download-page main section[id],.download-page .download[id]{scroll-margin-top:96px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important}}