:root{--paper:#f4f6f8;--ink:#101820;--secondary:#52616e;--blue:#256387;--line:#d8e0e6;--space:#0b1016}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin:0}h1,h2,h3{text-wrap:balance}p{text-wrap:pretty}a{color:inherit;text-decoration:none}button{font:inherit}a,button,summary{touch-action:manipulation}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #4a99c6;outline-offset:5px}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.wrap{width:min(1240px,calc(100% - 96px));margin:auto}.skip{position:absolute;top:-80px;left:20px;padding:12px 20px;background:white;color:#101820;z-index:100}.skip:focus{top:10px}
.site-header{position:absolute;top:0;left:0;width:100%;z-index:20;color:#f5f7f9;height:84px}.site-header.scrolled{position:fixed;height:68px;background:#0b1016f5;border-bottom:1px solid #ffffff18}.nav{height:100%;display:flex;align-items:center;gap:50px}.brand{display:inline-flex;align-items:center;gap:11px;font-size:18px;font-weight:600;white-space:nowrap}.brand svg{width:30px;height:30px;color:#dcecf5}.nav-links{display:flex;gap:34px;font-size:13px}.nav-links a{color:#dae3ea}.nav-links a:hover{color:white}.nav-release{margin-left:auto;padding:8px 20px;border-radius:28px;background:#f4f7f9;color:#14202a;font-size:13px;font-weight:500}.nav-release:hover{background:#cfe5f4}
.hero{position:relative;min-height:660px;height:min(760px,85vh);color:#f4f7f9;background:var(--space);overflow:hidden;display:flex;align-items:center}.hero-art{position:absolute;inset:0;background:url("assets/ark-hero.webp") center center/cover no-repeat;animation:scene-arrive 1.6s cubic-bezier(.16,1,.3,1) both}.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#080e16a6 0%,#080e1666 38%,transparent 73%);pointer-events:none}.hero-copy{position:relative;z-index:1;padding-top:48px}.hero h1{font-size:clamp(58px,6.3vw,92px);letter-spacing:-.035em;font-weight:600;line-height:1.17;max-width:10em}.hero-description{font-size:18px;line-height:1.8;color:#e0e9f0;margin-top:24px;max-width:38em}.small-break{display:none}.hero-actions{display:flex;gap:18px;margin-top:32px}.button{display:inline-flex;align-items:center;justify-content:center;gap:18px;border-radius:30px;min-height:50px;padding:12px 26px;border:1px solid transparent;font-size:14px;transition:background .2s,color .2s}.primary{background:#f4f7f9;color:#182430}.primary:hover{background:#d6eaf6}.secondary{background:#0b10163b;border-color:#a5b2bd;color:#f4f7f9}.secondary:hover{background:#223744}.hero-requirements{color:#c6d3de;font-size:12px;margin-top:21px}
.section-title{font-size:clamp(34px,3.8vw,52px);font-weight:600;line-height:1.3;letter-spacing:-.025em}.section-title span{color:#657d8d}.overview{padding-block:66px 82px}.section-intro{font-size:17px;color:var(--secondary);margin-top:13px}.capabilities{display:grid;grid-template-columns:repeat(3,1fr);gap:58px;margin-top:34px}.capabilities article{display:flex;gap:20px;align-items:flex-start}.capabilities article>svg{flex:0 0 27px;margin-top:5px;color:#354958}.capabilities h3{font-size:20px;font-weight:600}.capabilities p{font-size:14px;color:var(--secondary);line-height:1.9;margin-top:8px}
.report-section{background:#e7edf1}.report-layout{padding-block:110px;display:grid;grid-template-columns:1fr 1fr;gap:120px;align-items:center}.report-copy>p{margin-top:26px;font-size:17px;color:var(--secondary)}.text-link{display:inline-flex;align-items:center;gap:10px;font-size:14px;color:var(--blue);margin-top:24px}.text-link:hover{text-decoration:underline}.report-example{margin:0;padding-left:48px;border-left:1px solid #b9c9d4}.report-example figcaption{font-size:12px;color:#526572;margin-bottom:23px}.metric-main>span,.metric-pair span{display:block;color:#4d6473;font-size:13px}.metric-main strong{font-size:64px;line-height:1.4;font-weight:500;letter-spacing:-.03em;font-variant-numeric:tabular-nums}.metric-main small,.metric-pair small{font-size:17px;font-weight:400;margin-left:8px}.metric-pair{display:flex;gap:65px;margin-top:14px}.metric-pair strong{font-size:32px;font-weight:500;font-variant-numeric:tabular-nums}.report-example>p{font-size:12px;color:#526572;margin-top:26px}
.continuity{display:grid;grid-template-columns:1fr 1fr;gap:120px;padding-block:120px}.continuity-copy p{font-size:16px;color:var(--secondary);margin-bottom:20px}.workflow{padding-block:10px 100px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:65px;margin-top:45px}.step-number{font-size:23px;color:#52778e;display:block;margin-bottom:14px}.steps h3{font-size:20px}.steps p{font-size:14px;color:var(--secondary);margin-top:9px}.workflow-bottom{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-top:42px;border-top:1px solid var(--line);padding-top:22px}.workflow-bottom p{font-size:13px;color:var(--secondary)}.workflow-bottom a{margin:0;white-space:nowrap}
.download-section{background:#0e1924;color:#f4f7f9;padding-block:100px}.download-layout{display:grid;grid-template-columns:1.15fr 1fr;gap:100px;align-items:center}.download-layout h2{font-size:44px;line-height:1.35;letter-spacing:-.025em;font-weight:600}.download-layout h2 span{color:#a8c6d8}.download-layout>div>p{font-size:16px;color:#c0d0dc;margin-top:23px}.release-panel{padding:35px 38px;border:1px solid #425766;border-radius:16px;background:#162532}.release-heading{display:flex;gap:18px;justify-content:space-between;align-items:center;font-size:14px}.release-tag{font-size:11px;border:1px solid #7991a3;border-radius:15px;padding:2px 10px;white-space:nowrap}.release-panel .release-version{font-size:58px;letter-spacing:-.025em;line-height:1.2;margin-top:23px;color:white}.release-panel .release-desc{font-size:12px;margin-top:10px;color:#bed0de}.download-disabled{width:100%;background:#324b5d;color:#d4e2ec;margin-top:27px;cursor:not-allowed;border:0}.release-panel .release-note{font-size:12px;line-height:1.9;margin-top:19px;color:#c3d2de}.release-panel>a{display:inline-block;font-size:13px;margin-top:18px;color:#b7daf1}
.updates{padding-block:110px 75px}.updates-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:30px}.updates-heading>p{font-size:12px;color:var(--secondary);margin-bottom:7px}.changelog{margin-top:43px}.changelog article{display:grid;grid-template-columns:220px 1fr;gap:60px;border-top:1px solid var(--line);padding-block:25px}.changelog article>div{display:flex;align-items:center;gap:15px}.changelog h3{font-size:17px;font-weight:600}.changelog span{font-size:11px;color:var(--secondary);white-space:nowrap}.changelog p{font-size:14px;color:var(--secondary)}.faq{padding-bottom:105px}.faq h2{font-size:30px;margin-bottom:26px;font-weight:600}.faq details{border-bottom:1px solid var(--line)}.faq summary{display:flex;align-items:center;justify-content:space-between;font-size:15px;list-style:none;cursor:pointer;padding:24px 0;gap:20px}.faq summary::-webkit-details-marker{display:none}.faq summary svg{flex:0 0 18px;width:18px;height:18px;transition:transform .2s}.faq details[open] summary svg{transform:rotate(45deg)}.faq details p{max-width:72ch;font-size:14px;color:var(--secondary);padding-bottom:24px}
.site-footer{display:grid;grid-template-columns:1fr auto;gap:23px;border-top:1px solid var(--line);padding-block:35px}.site-footer .brand{font-size:15px}.site-footer>div>p{font-size:12px;color:var(--secondary);margin-top:9px}.footer-links{display:flex;gap:28px;font-size:12px;align-items:flex-start;padding-top:5px}.footer-links a:hover{color:var(--blue)}.footer-note{grid-column:1/-1;font-size:11px;color:var(--secondary)}
@keyframes scene-arrive{from{opacity:.72}to{opacity:1}}
@media(max-width:1000px){.wrap{width:calc(100% - 64px)}.nav{gap:30px}.hero{height:690px;min-height:600px}.hero h1{font-size:70px}.hero-description{font-size:16px}.hero-art{background-position:60% center}.capabilities{gap:28px}.capabilities article{gap:12px}.report-layout,.continuity{gap:55px}.report-example{padding-left:30px}.download-layout{gap:50px}.download-layout h2{font-size:38px}.release-panel{padding:30px}.steps{gap:30px}}
@media(max-width:720px){html{scroll-padding-top:80px}.wrap{width:calc(100% - 40px)}.site-header{height:72px}.nav{gap:0}.brand{font-size:14px;gap:8px}.brand svg{width:24px;height:24px}.nav-links{display:none}.nav-release{font-size:11px;padding:8px 12px}.hero{height:720px;min-height:620px;align-items:flex-start}.hero-copy{padding-top:145px}.hero h1{font-size:clamp(28px,9vw,39px);line-height:1.3}.hero-description{font-size:14px;max-width:26em;line-height:1.85;margin-top:22px}.small-break{display:block}.hero-actions{gap:12px;margin-top:26px}.button{font-size:12px;padding:11px 18px;gap:10px;min-height:46px}.hero-requirements{font-size:10px;margin-top:19px}.hero-art{background-position:67% center}.hero::after{background:linear-gradient(180deg,#080e1670,#080e16be 36%,#080e1666 70%,#080e1620)}.overview{padding-block:50px 58px}.section-title{font-size:33px}.section-intro{font-size:14px;margin-top:14px}.capabilities{grid-template-columns:1fr;gap:28px;margin-top:33px}.capabilities h3{font-size:18px}.capabilities p{font-size:13px}.capabilities article{gap:17px}.report-layout{grid-template-columns:1fr;gap:40px;padding-block:62px}.report-copy>p{font-size:14px;margin-top:21px}.report-example{padding:26px 0 0;border-left:0;border-top:1px solid #b9c9d4}.metric-main strong{font-size:53px}.metric-pair{gap:65px}.metric-pair strong{font-size:30px}.continuity{grid-template-columns:1fr;gap:28px;padding-block:65px}.continuity-copy p{font-size:14px}.text-link{font-size:13px}.workflow{padding-block:0 65px}.steps{grid-template-columns:1fr;gap:27px;margin-top:30px}.steps article{position:relative;padding-left:38px}.step-number{position:absolute;left:0;top:0;font-size:21px}.steps h3{font-size:18px}.steps p{font-size:13px;margin-top:7px}.workflow-bottom{display:block;margin-top:31px;padding-top:21px}.workflow-bottom a{margin-top:16px}.workflow-bottom p{font-size:12px}.download-section{padding-block:62px}.download-layout{grid-template-columns:1fr;gap:32px}.download-layout h2{font-size:33px}.download-layout>div>p{font-size:14px}.release-panel{padding:27px 24px}.release-heading{font-size:12px}.release-panel .release-version{font-size:48px}.updates{padding-block:66px 55px}.updates-heading{display:block}.updates-heading>p{margin-top:20px}.changelog{margin-top:25px}.changelog article{grid-template-columns:1fr;gap:12px;padding-block:23px}.changelog p{font-size:13px}.faq{padding-bottom:68px}.faq h2{font-size:24px}.faq summary{font-size:13px;padding:21px 0}.faq details p{font-size:13px}.site-footer{grid-template-columns:1fr;padding-block:29px;gap:21px}.footer-links{gap:23px}.footer-note{font-size:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

.hero-title-line{white-space:nowrap}

.download-ready{width:100%;margin-top:27px;cursor:pointer}.release-panel .checksum-link{display:block;overflow-wrap:anywhere}
.release-panel a.download-ready{color:#122533}