:root{color-scheme:light;--bg:#f8fafb;--paper:#fff;--ink:#233e4b;--muted:#657782;--line:#dde5e9;--blue:#255a72;--soft:#eaf2f6}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.85 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-underline-offset:5px}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #387bac;outline-offset:5px}img{display:block;max-width:100%;height:auto}.wrap{max-width:1200px;margin:auto;padding:0 48px}header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:28px!important;padding-bottom:24px!important;border-bottom:1px solid var(--line)}.brand{text-decoration:none;font-size:21px;font-weight:650;display:flex;align-items:center;gap:12px}.brand img{width:44px;border-radius:12px}.brand small{display:block;font-size:10px;letter-spacing:3px;color:var(--muted);line-height:1.3;font-weight:500;margin-top:3px}nav{display:flex;align-items:center;gap:30px;font-size:13px}nav a{text-decoration:none;padding:10px 0}nav a:hover,.text-link:hover{color:#397c9c}.nav-download{padding:9px 16px;border:1px solid #bdcdd6;border-radius:6px}.skip{position:absolute;top:-100px}.skip:focus{top:10px;background:white;padding:12px;z-index:5}.eyebrow{font-size:11px;color:var(--blue);letter-spacing:2px;font-weight:600;margin:0 0 16px}.status-dot{display:inline-block;width:6px;height:6px;background:#638c83;border-radius:50%;margin:0 9px 2px 0}.studio-intro{display:grid;grid-template-columns:1.4fr 1fr;gap:80px;align-items:end;padding:74px 0 58px}.studio-intro h1{font-size:clamp(32px,3.5vw,45px);line-height:1.45;letter-spacing:-1.8px;margin:0 0 20px;font-weight:550}.title-dot{color:#8cadbf}.studio-lead{color:var(--muted);font-size:14px;margin:0;line-height:1.9}.studio-current{padding:24px 0 8px 30px;border-left:1px solid #cbd9df;text-decoration:none;max-width:370px}.studio-current>.eyebrow{display:block;font-size:10px}.current-app{display:flex;align-items:center;gap:14px;font-size:20px;font-weight:600;margin:14px 0}.current-app img{border-radius:13px}.current-app small{display:block;font-size:12px;font-weight:400;color:var(--muted)}.current-arrow{margin-left:auto;font-size:26px;color:#6d94a9}.meta{font-size:12px;color:var(--muted)}.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:56px;align-items:center;padding:50px 52px 42px;background:#edf3f6;border:1px solid #e1eaee;border-radius:20px;overflow:hidden}.product-name{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:600}.product-name img{border-radius:11px}.product-name small{font-size:10px;letter-spacing:1px;color:var(--muted);font-weight:500;margin-left:8px}.hero-eyebrow{margin-top:30px;margin-bottom:12px;letter-spacing:2px}.product-title{font-size:clamp(34px,4vw,51px);line-height:1.4;letter-spacing:-2px;margin:0 0 22px;font-weight:600}.accent{color:#4c829a}.hero p{max-width:390px;color:var(--muted);font-size:14px}.hero .lead{font-size:16px}.product-tags{display:flex;gap:14px;color:#527485;font-size:11px;margin-top:20px;flex-wrap:wrap}.product-tags span+span:before{content:'·';margin-right:14px}.actions{display:flex;gap:10px;flex-wrap:wrap;margin:28px 0 14px}.button{display:inline-flex;align-items:center;justify-content:center;gap:18px;min-height:50px;border:1px solid #cfdae0;border-radius:7px;padding:11px 18px;text-decoration:none;background:#fff;font-size:13px;font-weight:600;transition:background .15s,box-shadow .15s}.primary{background:var(--blue);border-color:var(--blue);color:white}.button:hover{box-shadow:0 4px 14px #214e6715}.button.primary:hover{background:#1d4960}.button:disabled{opacity:.6;cursor:not-allowed;box-shadow:none;font-family:inherit;line-height:inherit}.hero .meta{font-size:11px;margin:5px 0}.legal-links{font-size:11px!important;margin-top:16px}.visual{margin:0;position:relative;display:flex;align-items:center;flex-direction:column;padding:28px 0 0;min-width:0;isolation:isolate}.visual:before{content:'';position:absolute;width:360px;height:360px;max-width:120%;top:100px;border-radius:50%;background:#dfebf0;z-index:-1}.visual-label{color:#7a98a8;font-size:9px;letter-spacing:3px;margin-bottom:20px}.phone{width:242px;max-width:90%;border:6px solid white;border-radius:31px;box-shadow:0 20px 40px #36546b1c;overflow:hidden;transform:rotate(3deg)}.visual figcaption{font-size:9px;color:var(--muted);text-align:center;margin-top:24px}.section{padding:76px 0;border-bottom:1px solid var(--line)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:36px}.section-head h2,.reflection h2{font-size:30px;line-height:1.5;letter-spacing:-.8px;font-weight:550;margin:0}.section-head>.eyebrow{margin:0}.section-head p:not(.eyebrow){font-size:13px;color:var(--muted);margin:0}.section-head .eyebrow{margin-bottom:14px}.features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px}.features article{border-top:2px solid #cbdde6;padding-top:22px}.num{display:flex;align-items:center;gap:16px;font-size:27px;font-weight:300;line-height:1.5;color:#7b9aaa}.num span{font-size:11px;color:#527485;letter-spacing:2px}.features h3{font-size:18px;font-weight:600;margin:18px 0 10px}.features p{font-size:14px;color:var(--muted);margin:0}.reflection{display:grid;grid-template-columns:1fr 1.15fr;gap:90px}.reflection-copy>p:not(.eyebrow){font-size:14px;color:var(--muted);margin:22px 0;max-width:340px}.text-link{font-size:13px;text-decoration:none;border-bottom:1px solid #a9c0cd;padding-bottom:7px}.text-link span{margin-left:25px}.reflection-list article{display:flex;gap:22px;padding:22px 0;border-bottom:1px solid var(--line)}.reflection-list article:first-child{padding-top:0}.reflection-list article:last-child{border:0;padding-bottom:0}.reflection-list article>span{color:#6e93a5;font-size:24px;min-width:25px}.reflection-list h3{font-size:17px;margin:0 0 8px;font-weight:550}.reflection-list p{font-size:13px;color:var(--muted);margin:0}.release{display:grid;grid-template-columns:1fr 1.65fr;gap:50px;background:var(--paper);padding:32px;border:1px solid var(--line);border-radius:10px}.version{font-size:42px;font-weight:500;margin:0;line-height:1.5;letter-spacing:-1px}.tag{font-size:10px;color:var(--blue);letter-spacing:1.5px}.release ul{padding-left:18px;font-size:14px;margin:0}.release>div>a{font-size:13px}.integrity{margin-top:16px;font-size:12px;color:var(--muted)}summary{cursor:pointer;min-height:48px;padding:12px 0}.integrity code{display:block;font-size:11px;overflow-wrap:anywhere;background:#eef2f5;padding:12px}.help{display:grid;grid-template-columns:1.25fr 1fr;gap:48px}.help details{border-bottom:1px solid var(--line)}.help details:first-child{border-top:1px solid var(--line)}.help summary{font-size:14px;padding:18px 0}.help p{font-size:13px;color:var(--muted)}.note{background:var(--soft);padding:24px 28px;border-radius:9px;align-self:start;font-size:14px}.note h3{margin:0 0 10px;font-size:17px;font-weight:550}.note p{margin:10px 0}footer{padding-top:32px!important;padding-bottom:32px!important;color:var(--muted);font-size:11px}.footer-row{display:flex;justify-content:space-between;gap:26px;flex-wrap:wrap;align-items:center}.footer-row>span:last-child{line-height:2.5}.footer-brand{font-size:16px;font-weight:600;color:var(--ink)}.footer-brand small{font-size:9px;letter-spacing:2px;margin-left:8px}.footer-brand>span{display:block;font-size:11px;font-weight:400;color:var(--muted);margin-top:5px}footer>p{margin-top:22px}.document{max-width:820px;padding-top:56px;padding-bottom:72px;min-height:65vh}.document h1{font-size:36px;font-weight:550}.document h2{font-size:22px;margin-top:32px;font-weight:600}.document p,.document li{overflow-wrap:anywhere}.document .note{margin:28px 0}.document section{margin-top:36px}.document section .eyebrow{margin-bottom:4px}.document section .eyebrow+h2{margin-top:0}.support-email{display:block;max-width:100%;overflow-wrap:anywhere;word-break:break-word;white-space:normal;text-align:center}
@media(min-width:1440px){.studio-intro{padding-top:88px;padding-bottom:70px}}
@media(max-width:960px){.wrap{padding-left:28px;padding-right:28px}.studio-intro{gap:32px}.hero{padding:38px 30px;gap:24px}.product-title{font-size:40px}.phone{width:220px}.reflection{gap:40px}.help{gap:28px}nav{gap:18px}.release{gap:28px}.visual:before{width:280px;height:280px}}
@media(max-width:680px){.wrap{padding-left:22px;padding-right:22px}header{padding-top:20px!important;padding-bottom:18px!important}.brand{font-size:18px}nav{gap:16px;font-size:12px}nav>a:first-child,nav>a:nth-child(2){display:none}.nav-download{padding:7px 10px}.studio-intro{grid-template-columns:1fr;padding:44px 0 34px;gap:26px}.studio-intro h1{font-size:34px;letter-spacing:-1px}.studio-current{max-width:none;border-left:0;border-top:1px solid var(--line);padding:20px 0 0}.studio-current>.eyebrow{font-size:9px;margin-bottom:8px}.current-app{margin:8px 0}.current-app img{width:40px;height:40px}.current-app{font-size:17px}.studio-current>.meta{display:none}.hero{grid-template-columns:1fr;padding:30px 24px;gap:26px;border-radius:14px}.hero-eyebrow{margin-top:26px}.product-title{font-size:38px;letter-spacing:-1.5px}.hero p{max-width:none}.hero .lead{font-size:15px}.actions{gap:8px}.actions .button{flex:1;padding:10px;gap:8px;white-space:nowrap;font-size:12px}.visual{padding-top:10px}.phone{width:218px;transform:rotate(2deg)}.visual:before{top:70px;width:290px;height:290px}.visual-label{margin-bottom:16px}.section{padding:46px 0}.section-head{display:block;margin-bottom:28px}.section-head h2,.reflection h2{font-size:26px}.section-head p:not(.eyebrow){margin-top:12px}.features{grid-template-columns:1fr;gap:26px}.features article{padding-top:16px}.features h3{margin-top:12px}.reflection{grid-template-columns:1fr;gap:30px}.reflection-copy>p:not(.eyebrow){max-width:none}.reflection-list article{gap:16px}.release,.help{grid-template-columns:1fr;gap:24px}.release{padding:24px}.note{padding:22px}.footer-row{display:block}.footer-row>span{display:block}.footer-row>span:last-child{margin-top:16px}.document h1{font-size:30px}.document{padding-top:30px}.document ul{padding-left:22px}}
@media(max-width:360px){.wrap{padding-left:16px;padding-right:16px}nav{gap:10px}.hero{padding:26px 18px}.product-title{font-size:33px}.actions .button{font-size:11px}.studio-intro h1{font-size:30px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

/* Compact download page. */
.header-support{font-size:13px;text-decoration:none}.compact-home{padding-top:40px;padding-bottom:40px}.compact-home .hero{min-height:620px;background:transparent;border:0;border-radius:0;padding:24px 32px;gap:70px}.app-icon{border-radius:16px;margin-bottom:20px}.compact-home .product-title{font-size:42px;letter-spacing:-1px;margin:0 0 12px}.product-title small{font-size:18px;font-weight:400;letter-spacing:0;color:var(--muted);margin-left:8px}.compact-home .lead{font-size:16px}.compact-home .visual{padding:0}.compact-home .phone{transform:none;width:230px}.compact-home .visual:before{display:none}.compact-home .visual figcaption{margin-top:16px}.compact-home .integrity,.install-help{font-size:12px;color:var(--muted);max-width:390px}.compact-home .integrity{margin-top:24px}.compact-home summary{padding:9px 0;min-height:40px}.compact-home .integrity code{font-size:10px}.compact-home .install-help p{font-size:12px}.compact-home+footer{border-top:1px solid var(--line)}
@media(max-width:680px){.compact-home{padding-top:22px;padding-bottom:30px}.compact-home .hero{min-height:0;padding:10px 0;gap:36px}.compact-home .product-title{font-size:36px}.compact-home .phone{width:210px}.compact-home .visual figcaption{font-size:9px}.compact-home .visual{padding-bottom:6px}.compact-home .integrity,.install-help{max-width:none}}

.compact-home .product-preview{width:280px;max-width:100%;height:auto;object-fit:contain}
@media(max-width:680px){.compact-home .product-preview{width:250px}}

.document h1{line-height:1.5;letter-spacing:-.6px}.document section{scroll-margin-top:28px}.document section h2{line-height:1.6}.document .document-contact{margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
@media(max-width:680px){header.wrap{gap:16px}.brand img{width:38px;height:38px}.brand{gap:10px}.header-support{font-size:12px;white-space:nowrap}.document h2{font-size:20px}}

.app-title-cn{font-family:"LongZhuTi","PingFang SC","Microsoft YaHei",sans-serif;font-weight:400;font-synthesis:none;color:#568BC9;letter-spacing:0}

@font-face{font-family:"LongZhuTi";src:url("assets/fonts/LongZhuTi-Regular.ttf") format("truetype");font-weight:400;font-style:normal;font-display:swap}

html:lang(en) .app-title-cn{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-weight:600;letter-spacing:-1px}html:lang(en) .compact-home .lead{max-width:390px}html:lang(en) .brand{font-weight:600}

.header-actions{display:flex;align-items:center;gap:22px}@media(max-width:680px){.header-actions{gap:12px}}

/* Compact shared header. */
header.wrap{padding-top:12px!important;padding-bottom:12px!important;gap:16px}header .brand{font-size:18px;gap:9px;line-height:1.4}header .brand img{width:32px;height:32px;border-radius:9px}.header-actions{gap:16px}
@media(max-width:680px){header.wrap{padding-top:10px!important;padding-bottom:10px!important;gap:12px}header .brand{font-size:16px;gap:7px}header .brand img{width:28px;height:28px;border-radius:8px}.header-actions{gap:10px}}

/* Match the app's primary action colors. */
:root{--action-bg:#D4F2FF;--action-ink:#234A5A}.button.primary{background:var(--action-bg);border-color:var(--action-bg);color:var(--action-ink)}.button.primary:hover{background:#C3EBFC;border-color:#C3EBFC;color:var(--action-ink)}.button.primary:active{background:#B5E4F8;border-color:#B5E4F8}

.language-tabs{display:flex;align-items:center;gap:5px;font-size:12px;line-height:1;color:var(--muted)}.language-tabs button{appearance:none;border:0;border-bottom:2px solid transparent;border-radius:0;background:transparent;color:var(--muted);font:inherit;font-weight:400;padding:9px 4px;min-height:32px;cursor:pointer}.language-tabs button[aria-pressed="true"]{color:#234A5A;border-bottom-color:#568BC9;font-weight:650}.language-tabs button:hover{color:#234A5A}.language-tabs button:focus-visible{outline:2px solid #568BC9;outline-offset:2px}.language-tabs>span{color:#a3b2bb}@media(max-width:680px){.language-tabs{font-size:11px;gap:3px}.language-tabs button{min-height:30px;padding:8px 3px}}

.version-facts{margin:28px 0;max-width:480px}.version-facts>div{display:grid;grid-template-columns:110px minmax(0,1fr);gap:18px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}.version-facts dt{color:var(--muted)}.version-facts dd{margin:0;overflow-wrap:anywhere}.document .integrity{margin-top:28px}.document .integrity code{font-size:12px;line-height:1.7}.document .note p:first-child{margin-top:0}.document .note p:last-child{margin-bottom:0}.brand-title{white-space:nowrap}html:lang(en) .header-support{white-space:nowrap}@media(max-width:360px){header .brand{font-size:15px}header .brand img{width:24px;height:24px}.header-actions{gap:6px}.header-support{font-size:11px}}

footer .icp-record{text-align:center;margin:20px 0 0;font-size:13px;line-height:1.8}footer .icp-site-record{display:block;font-size:12px}footer .icp-record a{display:inline-block;padding:3px 0;text-decoration:none}footer .icp-record a:hover{text-decoration:underline}