:root{--purple:#5f497a;--ink:#433b62;--blue-purple:#8b8fbe;--pale:#efedf4;--mist:#f6f6fa;--line:#e5e0ec;--gray-purple:#b7b0c8;--white:#fff;--muted:#6d657d;--font:"Source Han Sans CN","Noto Sans CJK SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;--mono:ui-monospace,SFMono-Regular,Consolas,monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:104px}body{margin:0;color:var(--ink);background:var(--white);font:16px/1.75 var(--font);-webkit-font-smoothing:antialiased}button,input,textarea{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--purple);outline-offset:5px}button{color:inherit}img{display:block;max-width:100%;height:auto}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:600;line-height:1.4}h2{font-size:clamp(28px,2.6vw,38px);letter-spacing:-1.3px}h3{font-size:21px;letter-spacing:-.4px}p{overflow-wrap:break-word}svg{display:block}::selection{background:var(--line)}[hidden]{display:none!important}.wrap{max-width:1280px;margin:0 auto;padding-left:48px;padding-right:48px}.section{padding-top:104px;padding-bottom:104px}.eyebrow{font:11px/1.6 Arial,sans-serif;letter-spacing:1.8px;font-weight:600;color:var(--muted);margin-bottom:16px}.quiet{font-size:12px;line-height:1.8;color:var(--muted)}.text-link{border:0;padding:0;background:none;font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:14px;text-underline-offset:5px}.text-link:hover{text-decoration:underline}.button{min-height:50px;padding:12px 23px;border:1px solid var(--purple);display:inline-flex;align-items:center;justify-content:space-between;gap:32px;font-size:14px;font-weight:500;border-radius:3px;transition:background .18s,transform .18s}.button:hover{transform:translateY(-2px)}.button.primary{background:var(--purple);color:#fff}.button.primary:hover{background:var(--ink)}.button.secondary{color:var(--purple);background:#fff;border-color:var(--line)}.button.secondary:hover{background:var(--mist)}.button>span{font-size:20px;font-weight:400;line-height:1}.status-dot{display:inline-block;width:6px;height:6px;flex:0 0 6px;background:var(--purple);border-radius:50%}.skip-link{position:fixed;top:8px;left:16px;z-index:20;padding:10px 16px;background:var(--ink);color:white;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0)}
.site-header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:96px;gap:30px}.wordmark{display:flex;flex-direction:column;line-height:1.35;flex-shrink:0}.wordmark strong{font-size:23px;letter-spacing:.5px;font-weight:600}.wordmark-dot{color:var(--purple);padding-left:3px}.wordmark>span{font:9px/1.5 Arial;letter-spacing:2px;margin-top:5px;color:var(--muted)}nav{display:flex;gap:30px;align-items:center;margin-left:auto}nav>a{font-size:13px;white-space:nowrap;color:var(--muted);transition:color .15s}nav>a:hover{color:var(--purple)}.header-cta{font-size:13px;margin-left:20px;border-left:1px solid var(--line);padding-left:32px;white-space:nowrap;display:flex;gap:22px;align-items:center}.header-cta span{font-size:19px}.menu-toggle{display:none}
.hero{background:var(--mist);overflow:hidden}.hero-grid{display:grid;grid-template-columns:.9fr 1.1fr;align-items:center;gap:48px;padding-top:84px;padding-bottom:60px}.release-pill{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--line);padding:6px 10px;background:white;font-size:11px;line-height:1.4;margin-bottom:38px}.release-pill>span:last-child{margin-left:12px}.hero-eyebrow{font-size:10px;margin-bottom:19px;letter-spacing:1.5px}h1{font-size:clamp(38px,4.5vw,62px);line-height:1.35;font-weight:500;letter-spacing:-2px;margin-bottom:24px}h1>span{color:var(--purple)}.hero-lead{font-size:16px;line-height:1.95;color:var(--muted)}.hero-actions{display:flex;align-items:center;gap:28px;margin-top:34px}.hero-platforms{font-size:11px;color:var(--muted);margin-top:18px;white-space:nowrap}.hero-platforms>span{padding:0 10px;color:var(--gray-purple)}.hero-visual{min-width:0;padding-top:24px;position:relative}.preview-label{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.preview-label .eyebrow{margin:0;font-size:9px;letter-spacing:1px}.preview-stamp{font-size:10px;color:var(--muted)}.app-preview{display:block;width:100%;padding:0;border:1px solid #d8d2e3;border-radius:5px;background:white;overflow:hidden;box-shadow:0 20px 60px #433b6210;cursor:zoom-in;text-align:left;transition:box-shadow .2s}.app-preview:hover{box-shadow:0 20px 60px #433b6225}.app-preview img{width:100%}.window-bar{display:flex;justify-content:space-between;align-items:center;padding:10px 12px;background:white;border-bottom:1px solid var(--line);font-size:9px;color:var(--muted)}.window-dots{display:flex;gap:4px}.window-dots i{display:block;width:5px;height:5px;border-radius:50%;background:var(--line)}.preview-caption{font-size:10px;color:var(--muted);display:flex;justify-content:space-between;margin-top:13px;gap:12px}.preview-caption>span:first-child{display:flex;align-items:center;gap:7px}.preview-caption .status-dot{width:4px;height:4px;flex-basis:4px}.context-note{display:flex;align-items:flex-start;gap:13px;margin-top:30px;justify-content:flex-end}.context-note p{font-size:12px;color:var(--muted);line-height:1.9}.context-note strong{font-weight:400;color:var(--ink)}.note-mark{font-size:30px;color:var(--blue-purple);margin-top:-11px;transform:rotate(-10deg)}.hero-bottom{display:flex;align-items:center;gap:23px;padding-top:24px;padding-bottom:25px;font-size:12px;border-top:1px solid var(--line);color:var(--muted)}.hero-bottom i{height:14px;width:1px;background:var(--line)}.hero-bottom a{margin-left:auto;display:flex;gap:36px;font-size:11px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px}.section-head .eyebrow{margin-bottom:15px}.section-intro{font-size:14px;line-height:1.9;color:var(--muted)}.workflow-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px}.workflow-item{border-top:1px solid var(--gray-purple);padding-top:28px}.feature-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:29px}.feature-number{font:11px var(--mono);color:var(--muted)}.feature-top svg{width:35px;height:35px;stroke:var(--purple);stroke-width:1.2}.workflow-item h3{font-size:20px;margin-bottom:18px}.workflow-item p{font-size:14px;color:var(--muted);line-height:1.9;min-height:80px}.format-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:25px}.format-tags>span{font-size:10px;line-height:1.5;background:var(--mist);border:1px solid var(--line);padding:3px 7px}.feature-detail{display:block;margin-top:18px;font-size:11px;color:var(--muted)}.privacy-line{display:flex;align-items:center;gap:18px;border-top:1px solid var(--line);margin-top:48px;padding-top:24px;font-size:12px;line-height:1.8;color:var(--muted)}.privacy-line strong{font-weight:500;color:var(--ink)}.small-symbol{font-size:27px;color:var(--purple)}
.download-section{background:var(--pale)}.version-label{display:flex;align-items:center;gap:8px;white-space:nowrap;font:14px var(--mono);padding-bottom:5px}.version-label>span:last-child{font-size:9px;color:var(--muted);margin-left:6px}.download-layout{display:grid;grid-template-columns:300px 1fr;border:1px solid #dbd4e5;background:#fff}.download-sidebar{padding:34px 26px;background:#f8f7fb;border-right:1px solid var(--line)}.download-sidebar>.eyebrow{font-family:var(--font);font-size:12px;letter-spacing:.5px}.platform-tabs{display:flex;flex-direction:column;gap:8px}.platform-tabs>button{display:flex;align-items:center;gap:14px;padding:17px 16px;background:transparent;border:1px solid transparent;text-align:left;width:100%;border-radius:3px}.platform-tabs>button[aria-selected=true]{background:white;border-color:var(--gray-purple);box-shadow:0 2px 8px #433b6205}.platform-tabs>button[aria-selected=false]:hover{background:var(--pale)}.platform-tabs strong{display:block;font-size:15px;font-weight:500}.platform-tabs small{display:block;font-size:10px;margin-top:2px;color:var(--muted)}.platform-icon{width:25px;height:25px;flex:0 0 25px;stroke:var(--purple);stroke-width:1.4}.windows-icon{display:grid;grid-template-columns:1fr 1fr;gap:3px;width:22px;height:22px;flex:0 0 22px}.windows-icon i{background:var(--purple)}.tab-arrow{margin-left:auto;font-size:19px}.platform-tabs>button[aria-selected=false] .tab-arrow{visibility:hidden}.platform-detection{margin-top:18px;min-height:42px}.download-aside-note{border-top:1px solid var(--line);padding-top:24px;margin-top:24px;color:var(--muted);font-size:12px;line-height:1.9}.download-aside-note p+p{margin-top:10px}.download-sidebar>.text-link{font-size:11px;margin-top:26px;gap:8px}.download-content{min-width:0}.platform-panel{padding:40px 42px}.platform-panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.platform-panel-head .eyebrow{font-size:10px;letter-spacing:1.5px;margin-bottom:12px}.platform-panel-head h3{font-size:25px}.test-badge{font-size:10px;white-space:nowrap;border:1px solid var(--line);padding:4px 7px;margin-top:1px;background:var(--mist)}.panel-lead{font-size:13px;color:var(--muted);margin-top:20px;max-width:540px;line-height:1.9}.download-button{margin-top:26px;min-width:245px}.file-meta{font:10px/1.6 var(--mono);margin-top:11px;color:var(--muted)}.install-steps{list-style:none;margin:30px 0 0;padding:25px 0 0;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:22px}.install-steps>li{display:flex;gap:18px}.install-steps>li>span{font:10px/1.8 var(--mono);color:var(--purple);padding-top:3px}.install-steps strong{font-weight:500;font-size:14px}.install-steps p{font-size:12px;line-height:1.85;color:var(--muted);margin-top:4px}.release-caveat{border-left:2px solid var(--gray-purple);padding-left:15px;margin-top:30px}.release-caveat>strong{font-size:12px;font-weight:500}.release-caveat>p{font-size:11px;line-height:1.85;color:var(--muted);margin-top:6px}.release-caveat>a{font-size:11px;text-decoration:underline;text-underline-offset:4px;display:inline-block;margin-top:8px}.checksum-details{border-top:1px solid var(--line);padding-top:17px;margin-top:26px}.checksum-details summary{display:flex;justify-content:space-between;align-items:center;font-size:12px;font-weight:500;cursor:pointer;list-style:none}.checksum-details summary::-webkit-details-marker{display:none}.checksum-details p{font-size:11px;color:var(--muted);margin:15px 0 12px}.hash{display:block;font:11px/1.8 var(--mono);overflow-wrap:anywhere;background:var(--mist);padding:12px;border:1px solid var(--line)}.inline-actions{display:flex;gap:20px;margin-top:12px;flex-wrap:wrap}.inline-actions button{font-size:11px;text-decoration:underline}.checksum-details pre{margin:12px 0 0;padding:10px;background:var(--mist);white-space:pre-wrap;overflow-wrap:anywhere;font:10px/1.8 var(--mono)}.mac-warning{margin-top:20px;padding:16px 18px;background:var(--pale);border-left:2px solid var(--purple)}.mac-warning>strong{font-size:12px;font-weight:500}.mac-warning p{font-size:12px;line-height:1.85;margin-top:5px}.update-note{display:grid;grid-template-columns:175px 1fr auto;gap:24px;align-items:start;border-top:1px solid #d8d1e1;margin-top:34px;padding-top:28px}.update-note>.eyebrow{font-size:10px;margin-top:7px}.update-note h3{font-size:15px;margin-bottom:8px}.update-note p{font-size:12px;color:var(--muted);max-width:650px}.update-note>.text-link{font-size:12px;margin-top:6px;white-space:nowrap}
.first-run{display:grid;grid-template-columns:1fr 1.15fr;gap:88px;align-items:center}.first-run-copy>p:not(.eyebrow):not(.quiet){margin-top:22px;font-size:14px;color:var(--muted);max-width:380px;line-height:1.9}.first-run-copy>.text-link{margin-top:19px;font-size:12px}.first-run-copy>.quiet{margin-top:22px;max-width:365px;font-size:11px}.prompt-card{border:1px solid var(--line);background:var(--mist);padding:30px 32px}.prompt-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px;gap:10px}.prompt-top>.eyebrow{margin:0;font-size:10px;letter-spacing:1px}.small-tag{font-size:10px;background:var(--pale);border:1px solid var(--line);padding:2px 7px;white-space:nowrap}.prompt-card>p{font-size:17px;line-height:2;color:var(--ink);letter-spacing:.2px}.prompt-bottom{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:24px;margin-top:30px;gap:14px}.prompt-bottom>span{font-size:10px;color:var(--muted)}.prompt-bottom .button{min-height:42px;font-size:12px;gap:14px;padding:9px 14px;white-space:nowrap}
.release-section{background:var(--mist);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.release-section .section-head>.text-link{font-size:12px;margin-bottom:5px}.release-entry{border-top:1px solid var(--gray-purple);display:grid;grid-template-columns:250px 1fr;gap:40px;padding-top:32px}.release-date>strong{display:inline-block;font:28px/1.5 var(--mono);margin-right:12px;letter-spacing:-1px}.release-date>time{display:block;font-size:11px;color:var(--muted);margin-top:12px}.release-body h3{font-size:20px;margin-bottom:20px}.release-body ul{margin:0;padding:0;list-style:none}.release-body li{font-size:13px;line-height:1.9;margin:12px 0;color:var(--muted);padding-left:16px;position:relative}.release-body li:before{content:"";position:absolute;left:0;top:11px;width:3px;height:3px;background:var(--blue-purple)}.release-body li>strong{font-weight:500;color:var(--ink)}.release-links{display:flex;flex-wrap:wrap;gap:24px;border-top:1px solid var(--line);padding-top:22px;margin-top:26px;font-size:11px}.release-links>a{text-decoration:underline;text-underline-offset:4px}
.faq-section{display:grid;grid-template-columns:.85fr 1.5fr;gap:80px}.faq-heading>p:not(.eyebrow){font-size:13px;color:var(--muted);margin-top:24px;line-height:1.9}.ossa{width:135px;height:135px;margin-top:30px}.faq-list{border-top:1px solid var(--gray-purple)}.faq-list details{border-bottom:1px solid var(--line);padding:23px 0}.faq-list summary{list-style:none;display:flex;justify-content:space-between;align-items:center;gap:24px;font-size:14px;cursor:pointer;font-weight:500}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary>span{font-size:17px;color:var(--muted);flex:0 0 20px;text-align:right;transition:transform .2s}.faq-list details[open] summary>span,.checksum-details[open] summary>span{transform:rotate(45deg)}.faq-list details>p{font-size:13px;color:var(--muted);line-height:1.95;margin-top:16px;padding-right:25px}.faq-list details a{text-decoration:underline;text-underline-offset:4px}
.feedback-band{background:var(--pale)}.feedback-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;padding-top:60px;padding-bottom:60px}.feedback-inner h2{font-size:28px}.feedback-inner p:not(.eyebrow){font-size:13px;color:var(--muted);margin-top:16px}.feedback-actions{display:flex;align-items:center;flex-direction:column;gap:13px;flex-shrink:0}.feedback-actions>.text-link{font-size:11px}.feedback-actions>.quiet{font-size:10px}.site-footer{display:grid;grid-template-columns:330px 1fr auto;gap:40px;align-items:center;padding-top:36px;padding-bottom:36px}.brand-lockup{padding:60px;width:300px}.brand-lockup img{width:180px;height:auto}.footer-copy{display:flex;flex-direction:column;align-items:flex-start}.footer-copy>strong{font-size:18px;font-weight:500}.footer-copy>span{font:9px/1.8 Arial;letter-spacing:1px;margin-top:5px;color:var(--muted)}.footer-copy>p{font-size:12px;color:var(--muted);margin-top:16px}.footer-copy>small{font:10px/1.7 Arial;color:var(--muted);margin-top:12px}.footer-links{display:flex;flex-direction:column;gap:12px;font-size:11px}.footer-links>a:hover{text-decoration:underline;text-underline-offset:4px}dialog{padding:0;border:1px solid var(--line);border-radius:4px;max-width:min(1280px,94vw);max-height:92vh;background:white;color:var(--ink);box-shadow:0 24px 100px #231a3650}dialog::backdrop{background:rgba(39,29,53,.65);backdrop-filter:blur(3px)}.dialog-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 20px;font-size:12px;border-bottom:1px solid var(--line);position:sticky;top:0;background:white}.dialog-bar button{border:1px solid var(--line);background:var(--mist);padding:6px 11px;white-space:nowrap;font-size:12px}.dialog-bar button span{margin-left:9px}#preview-image{max-height:calc(92vh - 70px);width:100%;object-fit:contain}#toast{position:fixed;bottom:28px;left:50%;transform:translate(-50%,15px);opacity:0;pointer-events:none;background:var(--ink);color:white;padding:12px 22px;border-radius:3px;font-size:13px;z-index:30;transition:opacity .2s,transform .2s;max-width:90vw;text-align:center;box-shadow:0 6px 30px #433b6233}#toast.visible{opacity:1;transform:translate(-50%,0)}.noscript-note{padding:20px;background:var(--pale);font-size:14px}.noscript-note a{text-decoration:underline}.not-found{max-width:750px;padding:20vh 32px;margin:auto}.not-found h1{font-size:42px}.not-found p:not(.eyebrow){margin-bottom:32px}
@media(min-width:1440px){.hero-grid{padding-top:100px;padding-bottom:80px;gap:64px}.hero h1{font-size:64px}.hero-visual{margin-right:-36px}.app-preview{transform:rotate(-1deg)}.hero-grid{grid-template-columns:.9fr 1.1fr}}
@media(max-width:1100px){.wrap{padding-left:32px;padding-right:32px}.header-inner{gap:18px}nav{gap:19px}.header-cta{margin-left:2px;padding-left:20px}.hero-grid{gap:30px}.hero h1{font-size:48px}.hero-eyebrow{font-size:8px}.hero-actions{gap:19px}.hero-actions .text-link{font-size:12px}.preview-label .eyebrow{font-size:8px}.workflow-grid{gap:26px}.workflow-item h3{font-size:18px}.download-layout{grid-template-columns:260px 1fr}.download-sidebar{padding:30px 20px}.platform-panel{padding:32px}.platform-panel-head{flex-direction:column;gap:16px}.platform-panel-head .test-badge{margin:0}.version-label{flex-wrap:wrap;max-width:170px}.version-label>span:last-child{margin-left:14px}.first-run{gap:48px}.prompt-card{padding:25px}.release-entry{grid-template-columns:200px 1fr}.faq-section{gap:50px}.site-footer{grid-template-columns:290px 1fr auto;gap:20px}.brand-lockup{width:280px;padding:55px}.brand-lockup img{width:170px}}
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