:root{--ink:#142238;--muted:#566477;--blue:#2458db;--line:#dce3ed;--paper:#f6f8fc;--white:#fff;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans",Arial,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}*{box-sizing:border-box}body{margin:0;min-height:100vh;color:var(--ink);background:var(--paper)}a{color:inherit;text-decoration:none}button,summary,a{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:5px}p{line-height:1.8}img{display:block;max-width:100%;height:auto}h1,h2,p,figure{margin:0}h1,h2{font-weight:650}h1{font-size:clamp(2.8rem,5.3vw,5rem);line-height:1.12;letter-spacing:-.055em;text-wrap:balance}h2{letter-spacing:-.025em}.wrap{width:min(1180px,calc(100% - 96px));margin-inline:auto}.skip{position:fixed;left:16px;top:-100px;z-index:99;background:var(--white);padding:16px}.skip:focus{top:16px}.site-header{border-bottom:1px solid var(--line);background:rgba(246,248,252,.97);position:relative;z-index:10}.header-inner{width:min(1320px,calc(100% - 64px));margin:auto;min-height:92px;display:flex;align-items:center;gap:32px}.brand{display:inline-flex;align-items:center;font-size:1.8rem;font-weight:750;letter-spacing:-.06em;white-space:nowrap}.brand img{border-radius:10px;margin-right:10px;width:36px}.header-inner>nav{display:flex;justify-content:center;flex:1;gap:30px}.header-inner>nav a{font-size:.9rem;color:var(--muted);padding:12px 0;position:relative}.header-inner>nav a:hover,.header-inner>nav a[aria-current]{color:var(--blue)}.header-inner>nav a[aria-current]:after{content:"";height:2px;background:var(--blue);position:absolute;bottom:2px;left:0;right:0}.languages{position:relative;font-size:.9rem;min-width:90px}summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;padding:12px 15px;border:1px solid var(--line);border-radius:8px}summary::-webkit-details-marker{display:none}.language-list{position:absolute;right:0;top:calc(100% + 8px);width:220px;max-height:70vh;overflow:auto;background:white;border:1px solid var(--line);padding:8px;border-radius:12px;box-shadow:0 12px 40px #14223818}.language-list a{display:block;padding:9px 12px;border-radius:6px}.language-list a:hover,.language-list a[aria-current]{background:#edf2ff;color:var(--blue)}.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:80px;align-items:center;padding-block:72px 68px}.eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.15em;color:var(--blue);margin-bottom:26px}.hero-copy .intro{font-size:1.15rem;max-width:530px;margin-top:28px;color:var(--muted)}.actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:34px}.button{display:inline-flex;align-items:center;justify-content:center;gap:28px;min-height:52px;padding:14px 22px;border-radius:8px;background:var(--blue);color:#fff;font-size:.95rem;font-weight:600;transition:background .15s,transform .15s}.button:hover{background:#1544bd;transform:translateY(-2px)}.text-link{font-size:.95rem;font-weight:600;color:var(--blue);text-decoration:underline;text-underline-offset:5px}.platform{font-size:.84rem;color:var(--muted);margin-top:30px}.app-figure{background:#e8edf9;border:1px solid #dce4f5;border-radius:24px;padding:20px 28px 18px;overflow:hidden;position:relative}.figure-label{display:flex;justify-content:space-between;color:#4a5c7c;font-size:.78rem;letter-spacing:.06em;margin-bottom:20px}.screenshot-frame{width:260px;margin:auto;max-width:100%;height:456px;border:5px solid #fff;border-radius:29px;overflow:hidden;box-shadow:0 22px 45px #29447a24;background:white}.screenshot-frame img{width:100%;height:auto}.app-figure figcaption{font-size:.78rem;text-align:center;color:#52617a;margin-top:20px}.features{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;padding:45px 0 70px;border-top:1px solid var(--line)}.feature-icon{display:inline-flex;padding:11px;border:1px solid #d6e0f8;border-radius:12px;background:#ecf1ff;color:var(--blue);margin-bottom:20px}.feature-icon svg{width:24px;height:24px}.features h2{font-size:1.12rem;margin-bottom:12px}.features p{font-size:.94rem;color:var(--muted);line-height:1.75}.security-band{display:flex;align-items:center;justify-content:space-between;gap:48px;background:#132d64;color:white;border-radius:20px;padding:44px 48px}.security-band .eyebrow{color:#acbfff;margin-bottom:14px}.security-band h2{font-size:clamp(1.6rem,3vw,2.35rem)}.security-band p:not(.eyebrow){max-width:720px;color:#c6d3f0;margin-top:14px}.button.light{background:white;color:#173b82;flex-shrink:0}.resource-links{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding-block:50px 70px}.resource-links>a{display:flex;align-items:flex-start;gap:22px;padding-block:24px;border-bottom:1px solid var(--line)}.resource-links>a:hover h2{color:var(--blue)}.resource-index{color:var(--blue);font-size:.84rem;line-height:2}.resource-links h2{font-size:1.2rem;margin-bottom:10px}.resource-links p{color:var(--muted);font-size:.9rem}.resource-links>a>span:last-child{margin-left:auto;font-size:1.5rem}footer{border-top:1px solid var(--line);padding-block:34px;display:flex;gap:32px;align-items:center;flex-wrap:wrap}footer .brand{font-size:1.6rem}footer p{font-size:.85rem;color:var(--muted);margin-top:8px}footer nav{display:flex;gap:20px;flex-wrap:wrap;margin-left:auto;font-size:.85rem;color:var(--muted)}footer nav a:hover{color:var(--blue)}.copyright{width:100%;font-size:.78rem;color:var(--muted)}.document{padding-block:65px 85px}.document-heading{max-width:850px;padding-bottom:48px}.document-heading h1{font-size:clamp(2.5rem,5vw,4.5rem);overflow-wrap:anywhere}.document-heading .intro{font-size:1.15rem;color:var(--muted);margin-top:24px}.updated{font-size:.85rem;color:var(--muted);margin-top:20px}.document-layout{display:grid;grid-template-columns:260px 1fr;gap:65px;border-top:1px solid var(--line);padding-top:38px}.document aside{align-self:start;position:sticky;top:30px}.toc-title{font-weight:650;font-size:.9rem;margin-bottom:18px}.document aside a{display:flex;gap:14px;padding:11px 0;font-size:.9rem;line-height:1.55;color:var(--muted)}.document aside a:hover{color:var(--blue)}.document aside a span{color:#7b8dad;font-size:.8rem;padding-top:2px}.prose{min-width:0;max-width:760px}.prose section{position:relative;padding:6px 0 30px;margin-bottom:28px;border-bottom:1px solid var(--line);scroll-margin-top:28px}.prose h2{font-size:1.35rem;line-height:1.45;margin:8px 0 16px}.prose section p{color:#47566a;font-size:1rem;line-height:1.95;overflow-wrap:anywhere}.section-number{font-size:.75rem;color:var(--blue);font-weight:600}.policy-note{font-size:.9rem;color:#674b16;background:#fff5df;border:1px solid #e9d3a1;padding:16px 20px;border-radius:8px;margin-bottom:30px}.sources{display:flex;gap:20px;flex-wrap:wrap;font-size:.9rem;color:var(--blue);margin-bottom:36px}.sources a{text-decoration:underline;text-underline-offset:4px}:lang(zh-Hans) h1,:lang(zh-Hant) h1,:lang(ja) h1,:lang(ko) h1{letter-spacing:-.035em;line-height:1.22}
@media(min-width:1500px){.hero{padding-block:90px}.screenshot-frame{width:285px;height:500px}}@media(max-width:1050px){.header-inner{gap:20px}.header-inner>nav{gap:18px}.hero{gap:40px}.features{grid-template-columns:repeat(2,1fr)}.document-layout{grid-template-columns:210px 1fr;gap:36px}}@media(max-width:800px){.wrap{width:calc(100% - 40px)}.header-inner{width:calc(100% - 40px);flex-wrap:wrap;padding-top:16px;gap:14px;min-height:auto}.brand{font-size:1.65rem}.header-inner>.languages{margin-left:auto}.header-inner>nav{order:3;flex-basis:100%;justify-content:flex-start;gap:20px;overflow-x:auto;padding-bottom:8px}.header-inner>nav a{white-space:nowrap}.hero{grid-template-columns:1fr;padding-block:45px;gap:40px}.hero-copy{max-width:630px}.hero h1{font-size:clamp(2.6rem,8vw,4rem)}.hero-copy .intro{font-size:1.05rem}.app-figure{max-width:440px;width:100%;margin:auto}.screenshot-frame{width:250px;height:438px}.features{gap:28px;padding-block:35px 45px}.security-band{padding:30px;flex-direction:column;align-items:flex-start;gap:25px}.resource-links{grid-template-columns:1fr;gap:4px;padding-block:24px 42px}.document{padding-top:38px}.document-layout{grid-template-columns:1fr;gap:30px}.document aside{position:static;border-bottom:1px solid var(--line);padding-bottom:20px}.document aside nav{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}.document-heading{padding-bottom:30px}.document-heading h1{font-size:2.65rem}footer{align-items:flex-start}footer nav{margin-left:0;width:100%}}@media(max-width:430px){.features{grid-template-columns:1fr}.features article{display:grid;grid-template-columns:48px 1fr;gap:0 16px}.feature-icon{grid-row:span 2;align-self:start;margin:0}.features h2{margin-bottom:8px}.features p{grid-column:2}.document aside nav{grid-template-columns:1fr}.actions{gap:20px}.header-inner>nav{gap:18px}.security-band{padding:26px}.resource-links>a{gap:14px}.intro{font-size:1rem}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}@media print{.site-header,.document aside,footer,.skip,.languages,.prose>.text-link{display:none}.wrap{width:100%}.document-layout{display:block}.document{padding:0}body{background:white}.prose{max-width:none}.prose section{break-inside:avoid}}
/* System appearance: CSS responds immediately when the OS preference changes. */
:root{color-scheme:light dark}
.brand picture{display:block;flex:none}
.store-entry{display:flex;flex-direction:column;justify-content:center;gap:3px;min-height:58px;padding:10px 22px;border-radius:10px;background:#172338;color:#fff;border:1px solid #172338;line-height:1.3}
.store-entry span{font-size:.8rem;letter-spacing:.02em}
.store-entry strong{font-size:1rem;font-weight:600}
a.store-entry:hover{background:#293c5a}
.store-entry.pending{background:#e8edf6;border-color:#cbd6e8;color:#354864}
@media(prefers-color-scheme:dark){
:root{--ink:#edf2fc;--muted:#afbdd2;--blue:#91b5ff;--line:#2b3951;--paper:#0c1220;--white:#162237}
.site-header{background:#0c1220f7}.language-list{background:#162237;box-shadow:0 12px 40px #0006}
.language-list a:hover,.language-list a[aria-current]{background:#263b60;color:#b1ccff}
.button{background:#2e62db;color:white}.button:hover{background:#3d71e8}
.app-figure{background:#142139;border-color:#2b3e5d}.figure-label,.app-figure figcaption{color:#b1bed5}
.screenshot-frame{background:#0c1220;border-color:#31405a;box-shadow:0 22px 45px #0005}
.feature-icon{background:#1c2b48;border-color:#344c75;color:#a9c5ff}
.security-band{background:#142c58;border:1px solid #345079}.security-band .eyebrow{color:#bdd0ff}.security-band p:not(.eyebrow){color:#d0dcf5}
.button.light{background:#e5edff;color:#173b82}
.prose section p{color:#bac7da}.document aside a span{color:#9fb2cf}
.policy-note{color:#f0d397;background:#302919;border-color:#665331}
.store-entry{background:#edf2fc;color:#142238;border-color:#edf2fc}a.store-entry:hover{background:#c8dcff}
.store-entry.pending{background:#1b2b46;color:#bed0ed;border-color:#395170}
}
@media print{:root{color-scheme:light;--ink:#142238;--muted:#566477;--blue:#2458db;--line:#dce3ed;--paper:#fff;--white:#fff}.prose section p{color:#47566a}.policy-note{color:#674b16;background:#fff5df;border-color:#e9d3a1}}

/* One destination per purpose: guide in the header, policy links in the footer. */
.header-inner>nav{flex:0 0 auto;margin-left:auto}
.security-band{margin-bottom:64px}
@media(max-width:800px){.header-inner{flex-wrap:nowrap;min-height:80px;padding-top:0;gap:14px}.header-inner>nav{order:0;flex-basis:auto;padding-bottom:0;overflow:visible;gap:0}.header-inner>.languages{margin-left:0}.security-band{margin-bottom:40px}}
@media(max-width:430px){.header-inner{gap:8px}.header-inner .brand{font-size:1.4rem}.header-inner .brand img{width:30px;margin-right:7px}.languages{min-width:0}summary{padding:10px;gap:8px}}
/* Product storytelling and a visible, consolidated support menu. */
.site-header{position:sticky;top:0;backdrop-filter:blur(16px)}
.header-inner>nav{gap:28px}.header-inner>nav a{font-size:.95rem;font-weight:500}
.home-page .hero-copy{animation:hero-enter .7s ease-out both}
.home-page .app-figure{animation:hero-enter .9s ease-out both}
.home-page .features article{transition:transform .2s ease}
.home-page .features article:hover{transform:translateY(-4px)}
.section-heading{max-width:800px;margin-bottom:38px}.section-heading h2,.editorial-split h2{font-size:clamp(1.9rem,3.4vw,3rem);line-height:1.22;text-wrap:balance;letter-spacing:-.04em}
.section-heading>p:not(.eyebrow){font-size:1.06rem;line-height:1.9;color:var(--muted);margin-top:22px}
.product-overview,.setup-section,.plans-section{padding-block:70px;border-top:1px solid var(--line)}
.workspace-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 52px}
.workspace-item{padding:30px 0;border-top:1px solid var(--line)}
.workspace-name{display:flex;align-items:center;gap:16px;margin-bottom:16px}.workspace-name h3{font-size:1.6rem;margin:0;letter-spacing:-.03em}.workspace-name svg{width:28px;height:28px;margin-left:auto;color:var(--blue)}
.workspace-number,.plan-index{font-size:.8rem;letter-spacing:.08em;color:var(--blue)}
.workspace-item>p,.plan-copy>p{font-size:1rem;line-height:1.85;color:var(--muted);margin:0}
.clarity-section{padding:48px;border-radius:20px;background:#e8effe;margin-block:10px 60px}
.editorial-split{display:grid;grid-template-columns:1fr 1.15fr;gap:64px;align-items:start}
.editorial-split>p{font-size:1.06rem;line-height:1.95;color:var(--muted)}
.setup-section .section-heading{max-width:900px}.key-boundary{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}.key-boundary span{font-size:.9rem;padding:13px 20px;border:1px solid var(--line);border-radius:40px;color:var(--muted)}
.plans-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.plan-copy{padding:34px;border:1px solid var(--line);border-radius:18px;background:var(--white)}.plan-copy h3{font-size:1.55rem;margin:18px 0;line-height:1.35;letter-spacing:-.03em}.pro-plan{background:#edf2ff;border-color:#becff4}
.history-section{padding-block:44px 80px}
.reveal{scroll-margin-top:120px}.reveal.is-entering{animation:section-enter .65s ease-out both}
.document aside{top:120px}.prose section{scroll-margin-top:120px}
@keyframes hero-enter{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes section-enter{from{opacity:.35;transform:translateY(20px)}to{opacity:1;transform:none}}
@media(prefers-color-scheme:dark){.clarity-section{background:#14243e}.pro-plan{background:#182b49;border-color:#3c5682}}
@media(max-width:1050px){.header-inner>nav{gap:20px}.editorial-split{gap:36px}.workspace-grid{gap:0 32px}}
@media(max-width:800px){.header-inner{flex-wrap:wrap;padding-block:14px 6px;gap:8px 16px}.header-inner>.languages{margin-left:auto}.header-inner>nav{order:3;flex-basis:100%;margin-left:0;display:flex;justify-content:flex-start;gap:8px 24px;flex-wrap:wrap;padding-bottom:8px}.header-inner>nav a{white-space:normal;line-height:1.4;padding-block:9px;font-size:.9rem}.product-overview,.setup-section,.plans-section{padding-block:44px}.section-heading{margin-bottom:28px}.workspace-grid{gap:0 24px}.editorial-split{grid-template-columns:1fr;gap:22px}.clarity-section{padding:30px;margin-block:0 36px}.plans-grid{grid-template-columns:1fr}.history-section{padding-block:24px 46px}.section-heading h2,.editorial-split h2{font-size:2rem}.document aside{position:static}.reveal,.prose section{scroll-margin-top:180px}}
@media(max-width:480px){.workspace-grid{grid-template-columns:1fr}.plan-copy{padding:26px}.header-inner>nav{gap:4px 18px}.clarity-section{padding:26px}}
@media(prefers-reduced-motion:reduce){.home-page .hero-copy,.home-page .app-figure,.reveal.is-entering{animation:none!important}.home-page .features article:hover{transform:none}}
@media print{.home-page .hero-copy,.home-page .app-figure,.reveal.is-entering{animation:none}.clarity-section,.pro-plan{background:white}}