@font-face{font-family:Nunito;src:url('../fonts/Nunito.ttf') format('truetype');font-weight:200 1000;font-display:swap}
:root{--paper:#f7f0de;--ink:#4a3621;--sea:#29618c;--deep:#174663;--light:#fcf7eb;--rule:#d6c6a7;--muted:#6b5942}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;color:var(--ink);background:var(--paper);font-family:Nunito,system-ui,sans-serif;line-height:1.65;-webkit-text-size-adjust:100%}a{color:var(--deep);text-underline-offset:5px}a:hover{text-decoration-thickness:2px}a:focus-visible,summary:focus-visible{outline:3px solid var(--sea);outline-offset:5px}img{display:block;max-width:100%;height:auto}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.15;text-wrap:balance}p{max-width:68ch}h1{font-size:clamp(2.5rem,4.8vw,4.5rem);font-weight:850;letter-spacing:-.045em}h2{font-size:clamp(2rem,3vw,3rem);font-weight:800;letter-spacing:-.025em}h3{font-size:1.4rem;font-weight:800}p{margin-top:16px}.wrap{width:min(1180px,calc(100% - 64px));margin-inline:auto}.skip{position:absolute;left:20px;top:-100px;background:var(--light);padding:12px;z-index:5}.skip:focus{top:12px}.header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:24px}.brand{display:flex;align-items:center;gap:12px;font-size:1.25rem;font-weight:850;text-decoration:none;color:var(--ink);white-space:nowrap}.brand img{border-radius:12px}.header nav,.languages{display:flex;gap:26px;flex-wrap:wrap}.header nav a{padding-block:10px;text-decoration:none;font-weight:700}.header nav a[aria-current]{text-decoration:underline}.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center;padding-block:72px 56px}.intro{font-size:1.15rem;color:var(--muted);line-height:1.75}.hero h1{max-width:12ch}.hero .intro{margin-top:26px;max-width:46ch}.button{display:inline-block;background:var(--sea);color:white;padding:14px 24px;border-radius:12px;font-weight:800;text-decoration:none;margin-top:30px}.button:hover{background:var(--deep)}.release-status{font-size:.9rem;color:var(--muted);margin-top:14px}.atlas-art{position:relative;padding:22px 18px}.atlas-art img{width:100%;border-radius:24%;transform:rotate(-5deg)}.atlas-art figcaption{position:relative;text-align:center;font-size:1rem;margin-top:30px;font-weight:700}.facts{display:flex;gap:56px;border-block:1px solid var(--rule);padding-block:26px;margin-block:12px 0}.facts div{display:flex;align-items:baseline;gap:12px}.facts dt{order:2;color:var(--muted)}.facts dd{margin:0;font-size:2.3rem;font-weight:800;line-height:1.2}.explore{padding-block:90px}.explore>h2{max-width:23ch}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:48px;margin-top:42px}.features h3{color:var(--sea)}.features p{color:var(--muted)}.language-note{margin-top:34px;padding-top:24px;border-top:1px solid var(--rule);color:var(--muted);max-width:none}.parents{background:var(--deep);color:var(--light);padding-block:70px}.parent-layout{display:grid;grid-template-columns:1fr 1fr;gap:90px}.parent-layout>div>p{color:#e0e9e8}.promises article+article{margin-top:30px}.promises p{color:#e0e9e8;margin-top:10px}.parents a{color:white}.launch{text-align:center;padding-block:80px}.launch img{margin:0 auto 24px;border-radius:20px}.launch p{margin:20px auto}.launch>a{display:inline-block;padding:10px 20px;font-weight:800}.footer{border-top:1px solid var(--rule);padding-block:26px;display:flex;justify-content:space-between;gap:24px;font-size:.9rem}.footer p{margin:0}.languages{gap:18px}.languages a{padding-block:8px}.languages a[aria-current]{font-weight:850}.reading{max-width:760px;padding-block:58px 90px}.reading h1{font-size:3rem}.reading>.intro{margin-bottom:40px}.reading section{margin-top:36px}.reading h2{font-size:1.5rem}.reading details{border-bottom:1px solid var(--rule);padding-block:20px}.reading summary{font-size:1.15rem;font-weight:800;cursor:pointer;min-height:30px}.reading details p{margin-bottom:8px}.contact{padding:26px;background:var(--light);border-radius:16px}.contact a{overflow-wrap:anywhere}
@media(max-width:850px){.hero{gap:20px;padding-block:42px}.header{align-items:flex-start}.header nav{gap:16px}.facts{justify-content:space-between;gap:18px}.facts div{display:block}.facts dt{font-size:.9rem}.facts dd{margin-top:5px}.features{gap:26px}.parent-layout{gap:40px}.atlas-art{padding:12px 0}.footer{flex-wrap:wrap}}
@media(max-width:600px){.wrap{width:calc(100% - 40px)}.header{display:block;padding-block:18px}.header nav{margin-top:16px;justify-content:space-between;gap:12px;font-size:.9rem}.hero{grid-template-columns:1fr;padding-top:30px}.hero h1{max-width:13ch}.hero .intro{font-size:1.05rem}.atlas-art{width:min(360px,90%);margin:14px auto 0}.atlas-art figcaption{margin-top:22px}.facts{padding-block:22px;gap:12px}.facts dt{max-width:12ch}.facts dd{font-size:2rem}.explore{padding-block:58px}.features{grid-template-columns:1fr;gap:30px;margin-top:30px}.features p{margin-top:10px}.parent-layout{grid-template-columns:1fr;gap:34px}.parents{padding-block:48px}.launch{padding-block:56px}.reading{padding-top:36px}.reading h1{font-size:2.6rem}.footer{gap:12px}.brand{font-size:1.2rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.screenshots{padding-top:70px}.screenshots>p{color:var(--muted);max-width:65ch}.screenshot-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;margin-top:32px}.screenshot-grid figure{min-width:0}.screenshot-grid img{width:100%;height:auto;border:1px solid var(--rule);border-radius:18px;box-shadow:0 12px 28px #4a362114}.screenshot-grid figcaption{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-top:16px;font-weight:800}.screenshot-grid figcaption a{font-size:.9rem;font-weight:600}.footer .languages{max-width:560px}.footer{align-items:baseline}:lang(zh-Hans){font-family:Nunito,"PingFang SC","Microsoft YaHei",system-ui,sans-serif}:lang(zh-Hans) h1{max-width:10em;letter-spacing:0;line-height:1.3}:lang(zh-Hans) h2{line-height:1.4;letter-spacing:0}:lang(zh-Hans) h3{line-height:1.5}.header nav{justify-content:flex-end}
@media(max-width:600px){.screenshot-grid{grid-template-columns:1fr;gap:36px}.screenshots{padding-top:48px}.header nav{justify-content:space-between}.footer .languages a{min-height:44px;display:inline-flex;align-items:center}.screenshots h2{font-size:2rem}}