:root{color-scheme:light;--paper:#f8f3e7;--ink:#243e32;--muted:#627365;--line:#243e3228;--button:#294735;--button-ink:#fffdf4;--surface:#fffcf4;--hover:#e8eddf;--focus:#ab542e}
:root[data-theme=dark]{color-scheme:dark;--paper:#132b2a;--ink:#f0ead7;--muted:#b4c1b2;--line:#f0ead730;--button:#e8d7aa;--button-ink:#203730;--surface:#1a3632;--hover:#29473f;--focus:#f3b36d}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.6}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}a,button{touch-action:manipulation}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:5px}button{border:0;background:none}[hidden]{display:none!important}svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}.wrap{width:min(1120px,calc(100% - 112px));margin-inline:auto}.skip-link{position:fixed;left:16px;top:-100px;padding:12px;background:var(--surface);z-index:10}.skip-link:focus{top:12px}.site-header{position:absolute;z-index:3;top:0;left:0;width:100%;height:90px;padding:0 4%;display:flex;align-items:center;justify-content:space-between}.wordmark{display:inline-flex;align-items:center;gap:12px;font-family:Georgia,serif;font-size:22px;font-weight:700;letter-spacing:-.5px}.wordmark svg{width:28px;height:28px}nav{display:flex;align-items:center;gap:26px}nav>a{padding:12px 0;font-size:15px}.theme-button{display:grid;place-items:center;width:44px;height:44px;border-radius:50%}.theme-button:hover{background:var(--hover)}.sun{display:none}[data-theme=dark] .moon{display:none}[data-theme=dark] .sun{display:block}.hero{position:relative;isolation:isolate;height:66.667vw;max-height:1160px;min-height:690px;max-width:1740px;margin:auto;overflow:hidden}.scene{position:absolute;inset:0;z-index:-1;pointer-events:none}.scene img{width:100%;height:100%;object-fit:cover;object-position:center bottom;display:block}.night-art{display:none!important}[data-theme=dark] .day-art{display:none}[data-theme=dark] .night-art{display:block!important}.hero-copy{padding-top:clamp(94px,7.2vw,126px);text-align:center;position:relative;margin:auto;width:max-content;max-width:90%}h1,h2,h3,p{margin:0}h1,h2{font-family:"Songti SC","STSong","Noto Serif CJK SC",Georgia,serif;font-weight:500}h1{font-size:clamp(42px,4.2vw,70px);line-height:1.28;letter-spacing:.025em}h1+p{font-family:"Songti SC","STSong",Georgia,serif;font-size:clamp(17px,1.6vw,23px);margin-top:12px}.hero-actions{display:flex;justify-content:center;align-items:center;gap:24px;margin-top:24px}.button{display:inline-flex;align-items:center;justify-content:center;gap:22px;background:var(--button);color:var(--button-ink);min-height:50px;padding:11px 25px;border-radius:50px;font-size:15px;font-weight:550;transition:transform .2s,filter .2s}.button:hover{transform:translateY(-2px);filter:brightness(1.1)}.text-link{font-size:14px;border-bottom:1px solid transparent;padding:8px 0}.text-link:hover{border-color:currentColor}.platform-note{display:block;font-size:11px;margin-top:11px;color:var(--muted)}.qualities{display:flex;justify-content:center;gap:clamp(30px,7vw,130px);padding:20px 20px 48px;max-width:1200px;margin:auto}.qualities span{display:flex;align-items:center;gap:12px;font-size:15px;white-space:nowrap}.download-section{padding:95px 0 85px;display:grid;grid-template-columns:1fr 430px;gap:80px;align-items:center;border-top:1px solid var(--line)}.eyebrow{font-size:13px;color:var(--muted);letter-spacing:.07em}h2{font-size:46px;line-height:1.3;margin:18px 0}h2+p{font-size:16px;color:var(--muted)}.mini-steps{list-style:none;padding:0;margin:28px 0 0;display:flex;flex-wrap:wrap;gap:12px 18px}.mini-steps li{font-size:12px;color:var(--muted)}.mini-steps span{display:inline-grid;place-items:center;border:1px solid var(--line);border-radius:50%;width:22px;height:22px;margin-right:7px}.download-chooser{background:var(--surface);border:1px solid var(--line);padding:28px 30px;border-radius:24px}.platform-tabs{display:flex;gap:6px;background:var(--paper);border-radius:30px;padding:5px;margin-bottom:26px}.platform-tabs button{flex:1;padding:10px;border-radius:25px;font-size:14px}.platform-tabs [aria-selected=true]{background:var(--button);color:var(--button-ink)}.release-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.release-heading h3{font-size:22px;font-weight:550}.release-heading>span{font-size:12px;color:var(--muted)}.requirements{font-size:13px;color:var(--muted);margin:7px 0 24px}.full{width:100%}.download-note{font-size:12px;color:var(--muted);margin-top:14px}.qr-download{display:flex;align-items:center;gap:20px;margin:0 0 24px}.qr-download img{width:132px;height:132px;image-rendering:pixelated;background:white;border:10px solid white;border-radius:9px}.qr-download strong{font-size:14px;font-weight:550}.qr-download p{font-size:12px;color:var(--muted);margin-top:6px}.details-section{max-width:1120px;padding-bottom:65px}.details-section details{border-bottom:1px solid var(--line)}summary{display:flex;align-items:center;justify-content:space-between;padding:20px 0;font-size:15px;cursor:pointer;list-style:none}summary::-webkit-details-marker{display:none}summary span{font-size:20px;font-weight:300}details[open] summary span{transform:rotate(45deg)}details p{font-size:14px;line-height:1.9;max-width:820px;color:var(--muted);margin-bottom:16px}details p:last-child{margin-bottom:24px}details p a{text-decoration:underline;text-underline-offset:4px}footer{border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:28px 0 38px;gap:20px}footer .wordmark{font-size:19px}footer>span{font-size:12px;color:var(--muted)}footer button{font-size:12px!important;color:var(--muted)}
@media(min-width:1740px){.hero:before,.hero:after{content:"";position:absolute;inset:0 auto 0 0;width:40px;background:linear-gradient(90deg,var(--paper),transparent);pointer-events:none}.hero:after{inset:0 0 0 auto;transform:rotate(180deg)}}
@media(max-width:1050px){.wrap{width:calc(100% - 64px)}.hero{min-height:650px}.hero-copy{padding-top:100px}h1{font-size:46px}.hero-actions{margin-top:18px}.download-section{grid-template-columns:1fr 380px;gap:35px}h2{font-size:36px}.qualities{padding-bottom:35px}.download-section{padding-block:60px}}
@media(max-width:700px){html{scroll-padding-top:16px}.wrap{width:calc(100% - 40px)}.site-header{height:76px;padding:0 22px}.wordmark{font-size:19px;gap:8px}.wordmark svg{width:24px;height:24px}nav{gap:14px}nav>a{font-size:14px}.hero{height:auto;min-height:0;overflow:hidden}.hero-copy{padding-top:110px;width:100%;max-width:100%;padding-inline:20px}h1{font-size:42px;line-height:1.35;letter-spacing:.02em}h1+p{font-size:18px;margin-top:16px}.hero-actions{margin-top:24px;gap:20px}.button{font-size:14px;min-height:48px;padding-inline:23px}.text-link{font-size:13px}.platform-note{font-size:10px;margin-top:13px}.scene{position:relative;inset:auto;width:100%;height:73vw;max-height:510px;margin-top:0}.scene img{object-fit:cover;object-position:center bottom;height:100%;width:100%}.qualities{gap:20px;padding:16px 12px 35px}.qualities span{font-size:11px;gap:7px}.qualities svg{width:18px;height:18px}.download-section{grid-template-columns:1fr;gap:32px;padding-block:48px}.download-heading{text-align:center}h2{font-size:34px;margin:14px 0}h2+p{font-size:14px}.mini-steps{justify-content:center;gap:10px;margin-top:22px}.mini-steps li{font-size:11px}.mini-steps span{width:20px;height:20px;margin-right:5px}.download-chooser{padding:23px;border-radius:22px;max-width:440px;width:100%;margin:auto}.release-heading h3{font-size:21px}.qr-download{justify-content:center}.details-section{padding-bottom:38px}summary{font-size:14px}details p{font-size:13px}footer{flex-wrap:wrap;gap:12px;padding-block:24px}footer .wordmark{width:100%}footer>span{font-size:11px}footer button{font-size:11px!important}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
/* Keep the illustration edge seamless in both palettes. */
.scene{mask-image:linear-gradient(to bottom,transparent,black 4%,black 94%,transparent)}
@media(min-width:701px){.hero-copy{padding-top:clamp(84px,6vw,105px)}h1{font-size:clamp(42px,3.8vw,64px)}.hero-actions{margin-top:18px}.platform-note{display:table;margin:10px auto 0;padding:2px 9px;border-radius:20px;background:var(--paper)}}
@media(max-width:700px){.scene{mask-image:linear-gradient(to bottom,transparent,black 13%,black 92%,transparent)}}

.security-note{padding:28px 0 34px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px 28px;flex-wrap:wrap}.security-note p{font-family:"Songti SC","STSong",Georgia,serif;font-size:21px}.security-note a{color:var(--muted)}
@media(max-width:700px){.security-note{padding-block:25px;gap:4px}.security-note p{font-size:19px}}