:root{--ink:#24483d;--muted:#667368;--paper:#f9f8f1;--gold:#bb954d;--line:#dddeda;--serif:"STKaiti","KaiTi","Noto Serif SC",serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;line-height:1.8}a{color:inherit;text-decoration:none}button,a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:5px}a[hidden],[hidden]{display:none!important}.skip{position:fixed;left:20px;top:-100px;z-index:30;background:white;padding:10px}.skip:focus{top:10px}.header{height:88px;display:flex;align-items:center;justify-content:space-between;max-width:1440px;padding:0 5%;margin:auto;gap:20px}.brand{display:flex;align-items:center;gap:10px;font-family:Georgia,serif;font-size:23px;white-space:nowrap}.brand b{font-family:var(--serif);font-size:20px;margin-left:5px;font-weight:600}.header nav{display:flex;align-items:center;gap:32px;font-size:13px}.nav-download{border:1px solid #a7b3a5;border-radius:5px;padding:9px 18px}.nav-download span{margin-left:18px}.hero{height:min(850px,calc(100svh - 40px));min-height:680px;position:relative;overflow:hidden;background:#c3ddd5}.landscape{position:absolute;inset:0;overflow:hidden}.landscape img{position:absolute;pointer-events:none}.sky{inset:-5% 0 0;width:100%;height:110%;object-fit:cover;animation:sky-arrive 1.5s ease-out both}.continent{width:82%;left:25%;top:34%;animation:continent-arrive 1.8s ease-out both}.foreground{width:100%;left:0;bottom:-1%;animation:foreground-arrive 2s ease-out both}.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(237,247,232,.72),transparent 44%,rgba(17,43,34,.12));pointer-events:none}.hero-copy{position:relative;z-index:2;text-align:center;padding-top:40px;animation:title-arrive 1.4s ease-out both}.eyebrow{font-size:11px;font-weight:600;letter-spacing:3px;margin:0 0 18px;color:#6a755f}.hero h1{font:600 clamp(60px,6.2vw,94px)/1.18 var(--serif);letter-spacing:9px;margin:0}.hero h1 span{display:block;font:normal 22px/1.4 Georgia,serif;letter-spacing:7px;margin-bottom:10px}.hero-subtitle{font-size:17px;letter-spacing:3px;margin:18px 0 24px}.button{display:inline-flex;align-items:center;justify-content:center;gap:35px;background:var(--ink);color:#fffdf2;border:1px solid var(--ink);padding:14px 27px;border-radius:5px;font-size:14px;font-weight:600;box-shadow:0 6px 20px #24483d18;transition:background .2s,transform .2s}.button:hover{background:#32614f;transform:translateY(-2px)}.hero-note{font-size:11px;letter-spacing:1px;margin:11px 0;color:#526a58}.hero-caption{position:absolute;z-index:3;bottom:30px;right:5%;background:#f9f8f1e8;border:1px solid #ffffff8a;backdrop-filter:blur(12px);padding:11px 20px;border-radius:3px;font-size:12px;display:flex;align-items:center;gap:10px}.caption-dot{width:6px;height:6px;background:#a6853e;border-radius:50%}.section{max-width:1200px;margin:auto;padding:92px 40px}.section-top{display:flex;justify-content:space-between;align-items:start;border-top:1px solid var(--line);padding-top:20px;margin-bottom:48px}.section-number{font-size:11px;color:#7b8273;letter-spacing:1px}.intro-heading{display:grid;grid-template-columns:1.1fr 1fr;gap:100px;align-items:center}h2{font:500 40px/1.55 var(--serif);letter-spacing:1px;margin:0}.intro-heading>p{font-size:15px;color:var(--muted);line-height:2.1;margin:0}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:62px}.features article{padding:0 34px;border-left:1px solid var(--line)}.features article:first-child{padding-left:0;border:0}.features article:last-child{padding-right:0}.feature-icon{display:flex;width:54px;height:54px;align-items:center;justify-content:center;border:1px solid #c6cfbc;background:#edf0e3;border-radius:50%;font-size:30px;color:#5d7354;margin-bottom:25px}.feature-index{font-size:11px;color:#8a8c77;letter-spacing:1px;margin-bottom:9px}.features h3{font-size:19px;line-height:1.7;font-weight:500;margin:0 0 13px}.features article>p:last-child{font-size:13px;line-height:2.1;color:var(--muted);margin:0}.download-wrap{background:#24483d;color:#f9f8f1;position:relative;overflow:hidden}.download-wrap:before{content:"";position:absolute;right:-200px;top:-350px;width:900px;height:900px;border-radius:50%;border:1px solid #ffffff12;box-shadow:0 0 0 80px #ffffff04,0 0 0 160px #ffffff03;pointer-events:none}.download{display:grid;grid-template-columns:1fr 1fr;gap:100px;position:relative;align-items:center}.download .eyebrow{color:#d4bf83}.download h2{font-size:45px}.download-copy>p:not(.eyebrow){font-size:14px;color:#cfdbd0;line-height:2;margin-top:22px}.beta-note{display:flex;gap:16px;margin-top:32px;padding-top:24px;border-top:1px solid #ffffff24}.beta-note>span{color:#d4bf83;font-size:24px}.beta-note strong{font-size:13px;font-weight:500}.beta-note p{font-size:12px;color:#bccdbf;line-height:1.9;margin:7px 0 0}.download-card{background:var(--paper);color:var(--ink);padding:32px;border:1px solid #d8dccd;border-radius:8px;box-shadow:0 24px 70px #102b2b38}.platform{display:flex;gap:15px;align-items:center}.platform strong{display:block;font-size:17px}.platform div>span{display:block;font-size:11px;color:var(--muted)}.release-badge{margin-left:auto;font-size:10px;background:#e8ebdb;padding:3px 8px;border-radius:3px;white-space:nowrap}.release-status{font-size:13px;line-height:1.9;color:var(--muted);margin:23px 0}.download-button,.download-placeholder{width:100%;min-height:54px}.download-placeholder{display:flex;align-items:center;justify-content:center;border:1px dashed #b8c1b0;border-radius:5px;color:#64745c;font-size:14px;background:#eef0e5}.release-detail{font-size:11px;color:#7b826f;text-align:center;overflow-wrap:anywhere;margin:10px 0 25px}.install-note{font-size:11px;color:#6b7768;border-top:1px solid var(--line);padding-top:18px;margin-bottom:0;line-height:2}.faq-layout{display:grid;grid-template-columns:1fr 1.3fr;gap:85px}.faq h2{font-size:34px}.faq-items details{border-bottom:1px solid var(--line)}.faq-items details:first-child{border-top:1px solid var(--line)}summary{position:relative;cursor:pointer;list-style:none;font-size:14px;padding:21px 28px 21px 0}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:0;top:19px;font:25px/1.2 Georgia,serif;color:#71836b}details[open] summary:after{content:"−"}.faq-items details>p{font-size:13px;color:var(--muted);margin:0 0 22px;line-height:2}.footer{max-width:1200px;padding:0 40px 30px;margin:auto}.footer>.brand{border-top:1px solid var(--line);padding-top:30px}.footer>p{font-size:12px;color:#6a7565;margin:8px 0 24px}.footer-meta{display:flex;gap:25px;font-size:11px;color:#7c8171}.footer-meta>a:last-child{margin-left:auto}@keyframes sky-arrive{from{transform:translateY(-2%)}to{transform:translateY(0)}}@keyframes continent-arrive{from{transform:translateY(-10%)}to{transform:translateY(0)}}@keyframes foreground-arrive{from{transform:translateY(-17%)}to{transform:translateY(0)}}@keyframes title-arrive{from{opacity:0;transform:translateY(-25px)}to{opacity:1;transform:translateY(0)}}@media(max-width:900px){.header{padding:0 24px;height:76px}.header nav{gap:18px}.header nav>a:not(.nav-download){display:none}.hero{height:750px;min-height:0}.hero-copy{padding-top:55px}.continent{top:40%;left:18%;width:105%}.foreground{width:140%;left:-15%;bottom:0}.intro-heading,.download{gap:40px}.section{padding:65px 30px}.features article{padding:0 20px}.features h3{font-size:17px}.faq-layout{gap:40px}.download h2{font-size:38px}.download-card{padding:23px}.platform{gap:10px}.platform strong{font-size:15px}.release-badge{font-size:9px}.hero-caption{bottom:20px;right:20px}.faq h2{font-size:30px}}@media(max-width:600px){.header{height:72px;padding:0 18px}.brand{font-size:19px;gap:7px}.brand img{width:26px;height:26px}.brand b{font-size:16px;margin-left:2px}.nav-download{padding:7px 10px;font-size:11px}.nav-download span{display:none}.hero{height:690px}.hero h1{font-size:58px;letter-spacing:5px}.hero h1 span{font-size:17px;letter-spacing:5px}.hero-copy{padding:39px 18px 0}.hero-subtitle{font-size:14px;letter-spacing:1px;margin:17px 0 21px}.hero .eyebrow{font-size:10px;letter-spacing:3px}.button{padding:12px 23px;font-size:13px;gap:25px}.hero-note{font-size:10px}.sky{object-position:58% center}.continent{width:160%;left:-10%;top:43%}.foreground{width:230%;left:-25%;bottom:0}.hero-caption{left:18px;right:18px;justify-content:center;font-size:10px;bottom:16px;padding:9px 8px}.section{padding:54px 24px}.section-top{margin-bottom:30px;gap:15px}.eyebrow{letter-spacing:2px;font-size:10px}.section-number{font-size:10px;white-space:nowrap}h2{font-size:33px}.intro-heading,.download,.faq-layout{grid-template-columns:1fr;gap:26px}.intro-heading>p{font-size:13px}.features{grid-template-columns:1fr;margin-top:35px;gap:27px}.features article,.features article:first-child,.features article:last-child{padding:25px 0 0;border-left:0;border-top:1px solid var(--line)}.feature-icon{float:right;width:44px;height:44px;font-size:25px;margin:0 0 0 10px}.feature-index{margin-top:0}.features h3{font-size:19px}.features article>p:last-child{font-size:13px}.download{gap:32px}.download h2{font-size:37px}.download-card{padding:25px}.platform strong{font-size:17px}.download-copy>p:not(.eyebrow){font-size:13px}.faq h2{font-size:32px}.footer{padding:0 24px 25px}.footer-meta{flex-wrap:wrap;gap:12px;font-size:10px}.footer-meta>a:last-child{margin-left:auto}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}