/* XX — refined monochrome product system */
:root{--ink:#17181a;--paper:#f5f5f3;--white:#fff;--muted:#707174;--line:#dededb;--lime:#fff;--violet:#858588;--coral:#858588;--blue:#858588}
body{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif}
::selection{background:#d4d4ce;color:#151515} :focus-visible{outline:2px solid #898989;outline-offset:5px}
[hidden]{display:none!important}.grain{display:none}.wrap{width:min(1200px,calc(100% - 96px))}
.skip-link{position:fixed;left:20px;top:-100px;background:white;color:#111;padding:14px 20px;z-index:100;border-radius:8px}.skip-link:focus{top:12px}
.topbar{height:84px;padding-inline:max(48px,calc((100% - 1200px)/2));background:rgba(14,15,17,.96);backdrop-filter:blur(18px);border-color:#ffffff12}
.brand{gap:12px;font-size:17px;flex-shrink:0;white-space:nowrap}.brand-mark{display:flex;justify-content:center;align-items:center;width:36px;height:36px;border-radius:10px;background:#f5f5f3;color:#151515;font-size:14px;box-shadow:inset 0 0 0 1px #fff5}.brand-mark span{color:#151515}
.brand-caption{display:block;font:8px/1.5 monospace;letter-spacing:.16em;color:#858589;margin-top:3px;font-weight:400}
.nav{gap:30px;margin:0}.nav a{font-size:12px;color:#a8a8ac;position:relative;padding:30px 0}.nav a:hover,.nav a[aria-current]{color:#fff}.nav a[aria-current]:after{content:'';position:absolute;bottom:19px;left:calc(50% - 2px);width:4px;height:4px;border-radius:50%;background:#eee}
.nav-cta{border:1px solid #4a4a4e;border-radius:8px;padding:11px 17px;color:#eee;font-size:12px;white-space:nowrap}.nav-cta:hover{background:#fff;color:#111}.nav-cta:hover span{color:#111}
.hero.wrap{width:100%;max-width:none;margin:0;min-height:730px;display:grid;grid-template-columns:1.04fr 1fr;gap:50px;padding:72px max(48px,calc((100% - 1200px)/2)) 84px;background:#0e0f11;isolation:isolate;overflow:hidden}
.hero:before{background:radial-gradient(ellipse at 80% 40%,#ffffff08,transparent 58%)}.hero-copy{padding:0;min-width:0}
.eyebrow{font:10px/1.7 monospace;letter-spacing:.13em;color:#a4a4a8}.hero-eyebrow{display:inline-flex;letter-spacing:.08em;font-family:inherit;font-size:11px;border:1px solid #ffffff20;background:#ffffff04;border-radius:30px;padding:7px 13px;gap:9px}
.pulse{background:#e2e2e2;width:5px;height:5px;box-shadow:0 0 0 4px #ffffff09}
.hero h1{font-family:inherit;font-size:clamp(44px,4.7vw,68px);font-weight:600;letter-spacing:-.045em;line-height:1.25;margin:29px 0 25px}.hero h1 em{color:#9a9b9e}
.hero-lede{font-size:15px;line-height:2;color:#a0a1a5;max-width:460px;margin:0}.hero-actions{gap:27px;margin-top:34px}
.button{min-height:50px;padding:15px 21px;font-size:12px;border-radius:8px;gap:27px;font-weight:600;transition:background .2s,transform .2s,box-shadow .2s}.button-light{background:#f4f4f2;color:#17181a;box-shadow:0 3px 0 #c6c6c6}.button-light:hover{background:#fff;box-shadow:0 6px 24px #ffffff14;transform:translateY(-2px)}.text-link{font-size:12px;color:#b4b4b8}.text-link:hover{color:#fff}.text-link span{margin-left:12px}
.hero-meta{border-top:1px solid #ffffff12;padding-top:22px;max-width:430px;margin-top:49px;gap:27px;font-family:inherit;font-size:11px;line-height:1.6;color:#929398}.hero-meta b{font:10px monospace;color:#68696e;margin-right:7px}
.hero-art{height:555px;position:relative;transform:none;min-width:0;border:1px solid #ffffff12;border-radius:24px;background:linear-gradient(155deg,#ffffff06,transparent 70%);margin:0;overflow:visible}
.preview-caption{position:absolute;top:21px;left:22px;right:22px;display:flex;justify-content:space-between;gap:10px;color:#74757a;font:9px monospace;letter-spacing:.08em}
.device{width:245px;height:435px;transform:translate(18px,-8px) rotate(-7deg) scale(.94);border:5px solid #58595b;border-radius:36px;background:linear-gradient(160deg,#fff,#f1f1f1);box-shadow:18px 30px 50px #0007,0 0 0 1px #aaa4,inset 0 0 0 1px #fff8}
.device:before{background:#3d3e40}.env-card{border-color:#e5e5e5;box-shadow:0 5px 15px #00000006}.live,.qicon,.device-bottom .active{color:#353638}.live i,.status-dot,.lime-dot{background:#555}.env-glyph{color:#333;background:#efefef}.device-bottom .active{font-weight:700}.app-icon{border-radius:9px}.quick{border-color:#e6e6e6}
.float-tag{background:#242527f5;color:#ddd;border:1px solid #ffffff25;border-radius:12px;padding:15px 17px;box-shadow:0 12px 30px #0005;gap:11px}.float-tag strong{display:block;font-size:11px;font-weight:500}.float-tag small{display:block;color:#999a9e;font-size:9px;margin-top:5px}.float-tag .tag-dot{background:#ddd;box-shadow:0 0 0 4px #ffffff0b}.tag-left{left:-21px;top:38%;transform:rotate(-2deg)}
.demo-switch{position:absolute;bottom:38px;left:50%;transform:translateX(-50%);display:flex;padding:4px;background:#0e0f11;border:1px solid #ffffff1c;border-radius:9px;white-space:nowrap;z-index:5}
.demo-switch button{cursor:pointer;background:transparent;border:0;border-radius:6px;color:#97989d;padding:9px 16px;font-family:inherit;font-size:11px;transition:background .2s,color .2s;min-height:35px}.demo-switch button[aria-pressed=true]{background:#e7e7e5;color:#161719;box-shadow:0 1px 4px #0004}.demo-switch button:hover{color:#fff}.demo-switch button[aria-pressed=true]:hover{color:#111}
.art-index{left:0;right:0;bottom:15px;text-align:center;color:#77787d;font-family:inherit;font-size:8px;line-height:1.5;letter-spacing:.03em}.scroll-note{bottom:24px;left:max(48px,calc((100% - 1200px)/2));font-size:8px;color:#727378}.scroll-note span{height:17px;background:#5d5e61}
.ticker{height:77px;background:#eeeee9;border-bottom:1px solid #dcdcd7}.ticker-track{width:min(1200px,calc(100% - 96px));min-width:0;margin:auto;gap:20px;justify-content:space-between;font-size:12px;font-weight:500;color:#656660;letter-spacing:.1em}.ticker-track b{font-size:9px;color:#a5a5a0}.ticker-track>:nth-child(n+9){display:none}.ticker-track>:nth-child(8){display:none}
.section{padding-block:100px}.section-head{gap:40px;align-items:flex-end;margin-bottom:40px}.dark-eyebrow{color:#77787b}.section-number{color:#99999b;margin-right:5px}.section h2,.workflow-copy h2,.safety-main h2,.about-section h2{font-size:clamp(32px,3.2vw,45px);font-weight:600;letter-spacing:-.04em;line-height:1.4;margin-top:18px}.section h2 em,.safety-main h2 em,.about-section h2 em{color:#87888a}.section-intro{font-size:13px;line-height:1.9;color:#7b7c7f;max-width:320px}
.feature-grid{grid-template-columns:1.08fr 1fr;gap:18px}.feature-card,.feature-large,.feature-wide{grid-row:auto;grid-column:auto;min-height:310px;padding:30px;border:1px solid #e1e1dd;background:#fff;border-radius:18px;transition:transform .25s,box-shadow .25s,border-color .25s}.feature-card:hover{transform:translateY(-4px);box-shadow:0 12px 30px #18181808;border-color:#bdbdb8}
.feature-top{margin-bottom:23px}.feature-id{font-size:10px;color:#98999a}.feature-symbol{width:37px;height:37px;background:#f6f6f3;border:1px solid #eaeae5;color:#55565a;border-radius:10px;font-size:19px}.feature-card h3{font-size:22px;font-weight:600;margin:0 0 11px}.feature-card p{font-size:13px;line-height:1.85;max-width:420px;color:#7a7b7e}
.feature-large{background:#222326;color:#eee;border-color:#222326}.feature-large .feature-symbol{background:#ffffff07;border-color:#ffffff12;color:#ddd}.feature-large p{color:#aaa}.feature-large .mini-panel{background:#2a2b2e;border-color:#424346;color:#ddd;box-shadow:0 10px 20px #0001}.feature-large .mini-row b{color:#bfbfc1}.feature-large .check{background:#424348;color:#eee}.feature-large .mini-progress{background:#45464a}.feature-large .mini-progress i{background:#c2c2c2}.feature-large .mini-chips span{background:#35363a;color:#b9b9bb}
.mini-panel{padding:19px;border-radius:10px;margin-top:26px}.mini-row{font-size:11px}.mini-row b{font-size:10px}.mini-progress{margin:14px 0}.mini-progress i{width:82%}.mini-chips{gap:7px}.mini-chips span{font-size:9px;padding:6px 9px}.check{font-size:9px}
.stack-visual{position:relative;left:auto;right:auto;bottom:auto;height:83px;margin-top:25px}.stack-card{font-size:11px;padding:12px;border-radius:9px}.stack-back{background:#eeeee9;left:10px;width:calc(100% - 20px);border:1px solid #e4e4df;box-shadow:none}.stack-front{bottom:0;box-shadow:0 8px 16px #00000005;border-color:#e6e6e1;padding:14px}.stack-app{background:#f0f0ec;color:#5c5d60}.stack-front i{font-size:9px;color:#6c6d6f;background:#f4f4f1;padding:4px 7px;border-radius:5px}
.maintenance{position:relative;left:auto;right:auto;bottom:auto;margin-top:28px;padding:17px;border-radius:10px;background:#f7f7f4;border-color:#e9e9e4;gap:12px}.maint-icon{background:#e7e7e2;color:#424346;width:35px;height:35px}.maintenance strong{font-size:11px;font-weight:500}.maintenance small,.maint-time{font-size:9px;color:#898a8b}
.wide-content{display:block}.workflow-visual{gap:9px;margin-top:28px}.workflow-visual span{font-size:10px;padding:14px 12px;background:#f7f7f4;border-color:#e9e9e4;border-radius:7px}.workflow-visual .workflow-active{background:#2c2d30;color:#e6e6e6;border-color:#2c2d30}.workflow-visual i{color:#b0b0ad}.fine-print{font-size:10px;color:#8a8b8e;margin-top:20px}
.workflow-section{background:#17181b;padding:93px 0;color:#eee}.workflow-section:after{display:none}.workflow-wrap{grid-template-columns:1fr 1fr;gap:80px}.workflow-copy h2 em{color:#919297}.workflow-copy p{font-size:13px;color:#999a9f;line-height:1.95;max-width:370px}.button-outline{border-color:#4b4c51;color:#ddd;margin-top:19px}.button-outline:hover{background:#ffffff08;border-color:#888}.steps{padding-top:10px}.step{padding:0 0 27px;gap:18px;grid-template-columns:35px 1fr 24px}.step:not(:last-child){margin-bottom:27px;border-color:#ffffff12}.step-num{display:grid;place-items:center;background:#ffffff05;border:1px solid #ffffff14;border-radius:9px;width:32px;height:32px;color:#b2b3b6;font-size:10px}.step h3{font-size:17px;font-weight:500;margin:2px 0 10px}.step p{font-size:12px;color:#8e8f96;line-height:1.8}.step-mark{font-size:17px;color:#9b9ca2}
.safety-section{padding-block:85px}.safety-card{padding:36px;background:#eeeee9;border:1px solid #e3e3dd;border-radius:18px;grid-template-columns:30px 1fr 1fr;gap:25px}.safety-mark{background:#e1e1da;color:#666760;font:italic 20px Georgia,serif}.safety-main h2{font-size:32px;margin:15px 0}.safety-main>p{font-size:12px;color:#7b7c76}.dark-link{color:#454640;font-size:11px}.dark-link:hover{color:#111}.dark-link span{color:#666}.safety-list>div{padding:20px 0;border-color:#dcdcd5}.safety-list b{font-size:13px;font-weight:500}.safety-list small{font-size:11px;color:#7f807a;line-height:1.8}.safety-list>div>span{font-size:10px;color:#999a92}
.about-section{padding-bottom:85px;gap:75px}.about-right>p{font-size:13px;line-height:1.95;color:#797a7d}.about-stats{gap:27px;margin-top:25px;border-color:#deded8}.about-stats b{font-size:14px;font-weight:500}.about-stats small{font-size:10px;color:#8b8c8e;margin-top:10px}
.download-section{background:#101113}.download-wrap{padding-block:75px;align-items:center;gap:40px}.download-wrap h2{font-size:40px;font-weight:500;line-height:1.5;letter-spacing:-.035em;margin:20px 0 16px}.download-wrap p{max-width:480px;font-size:12px;line-height:1.9;color:#929399}.button-lime{background:#f0f0ed;color:#17181a;white-space:nowrap}.button-lime:hover{background:#fff}.download-orb{display:none}.version-pill{font-size:10px;color:#ddd}
.footer{min-height:110px;gap:20px}.footer-brand{font-size:15px}.footer-brand .brand-mark{background:#202124;color:#fff;border-radius:8px;width:31px;height:31px}.footer-brand .brand-mark span{color:#fff}.footer-mid,.footer-right{font-size:10px;color:#8b8c8e}.footer-right a:hover{color:#111}.sources summary,.source-body{font-size:11px;line-height:1.8;color:#87888b}.sources summary{min-height:35px}.sources details{border-color:#deded8}.sources details[open] summary span{transform:rotate(45deg)}.source-body{max-width:850px;padding:15px 0}.announcement{font-size:12px;background:#28292c;padding-block:16px}.announcement>span{font-size:10px}.announcement>a{font-size:11px}
@media(min-width:1440px){.hero.wrap{min-height:785px;padding-top:82px;padding-bottom:96px}.hero-art{height:580px}.device{transform:translate(18px,-8px) rotate(-7deg) scale(1.02)}}
@media(max-width:1000px){.wrap{width:calc(100% - 64px)}.topbar{padding-inline:32px}.nav{gap:18px}.nav a{font-size:11px}.hero.wrap{padding-inline:32px;gap:30px;min-height:685px}.hero h1{font-size:46px}.hero-art{height:510px}.device{transform:translate(15px,-8px) rotate(-7deg) scale(.85)}.tag-left{left:-12px;font-size:9px;padding:12px}.hero-meta{gap:16px}.preview-caption{font-size:8px;left:17px;right:17px}.scroll-note{left:32px}.feature-card{padding:26px}.workflow-wrap{gap:45px}.safety-card{grid-template-columns:26px 1fr;gap:22px}.safety-list{grid-column:2}.about-section{gap:35px}.about-stats{gap:20px}.workflow-visual{gap:5px}.workflow-visual span{font-size:9px;padding:12px 10px}}
@media(max-width:760px){.wrap{width:calc(100% - 48px)}.topbar{height:72px;padding-inline:24px;gap:12px}.brand{font-size:15px;gap:10px}.brand-mark{width:32px;height:32px;border-radius:9px}.brand-caption{font-size:7px}.nav{display:none;position:absolute;top:72px;left:0;right:0;background:#141518;padding:16px 24px 22px;border-top:1px solid #ffffff16;flex-direction:column;gap:2px;align-items:stretch;box-shadow:0 15px 20px #0003}.nav.open{display:flex}.nav a{padding:13px 4px;font-size:14px;border-bottom:1px solid #ffffff08}.nav a[aria-current]:after{left:auto;right:5px;bottom:20px}.nav-cta{margin-left:auto;margin-right:0;font-size:11px;padding:10px 13px}.menu-toggle{display:flex;flex-direction:column;gap:5px;padding:12px 3px 12px 10px;cursor:pointer;min-height:42px}.menu-toggle i{height:1px;width:19px;background:#ddd;transition:transform .2s}.menu-toggle[aria-expanded=true] i:first-child{transform:translateY(3px) rotate(45deg)}.menu-toggle[aria-expanded=true] i:last-child{transform:translateY(-3px) rotate(-45deg)}
.hero.wrap{display:grid;grid-template-columns:1fr;padding:55px 24px 52px;gap:38px;min-height:0}.hero-copy{max-width:550px}.hero h1{font-size:clamp(42px,7.8vw,58px);margin:24px 0 21px}.hero-lede{font-size:14px}.hero-actions{margin-top:28px}.hero-meta{margin-top:35px;padding-top:19px;gap:24px}.hero-art{width:100%;max-width:480px;margin:0 auto;height:500px;transform:none;border-radius:20px}.device{transform:translate(12px,-6px) rotate(-6deg) scale(.87)}.tag-left{left:14px;top:39%}.preview-caption{top:18px;font-size:9px}.scroll-note{display:none}.ticker{height:62px}.ticker-track{width:calc(100% - 48px);font-size:11px;gap:12px;letter-spacing:0}
.section{padding-block:68px}.section-head{display:block;margin-bottom:28px}.section h2,.workflow-copy h2,.about-section h2{font-size:34px}.section-intro{margin-top:20px;font-size:13px}.feature-grid{grid-template-columns:1fr;gap:14px}.feature-card,.feature-large,.feature-wide{min-height:0;padding:26px;grid-column:auto;grid-row:auto}.feature-top{margin-bottom:20px}.feature-card p{max-width:none}.stack-visual{margin-top:25px}.maintenance{margin-top:25px}.workflow-visual{gap:9px}.workflow-visual span{font-size:10px;padding:13px 12px}.workflow-section{padding-block:65px}.workflow-wrap{grid-template-columns:1fr;gap:40px}.steps{padding-top:0}.step{margin-bottom:25px!important}.safety-section{padding-block:60px}.safety-card{padding:26px;display:block}.safety-mark{margin-bottom:20px}.safety-main>p{max-width:none}.safety-list{margin-top:26px}.about-section{grid-template-columns:1fr;gap:13px;padding-bottom:65px}.about-right{padding:0}.about-right>p{max-width:none}.about-stats{justify-content:space-between;gap:15px}.download-wrap{display:block;padding-block:58px}.download-wrap h2{font-size:34px}.button-lime{margin-top:22px}.footer{flex-wrap:wrap;padding-block:26px;gap:20px}.footer-mid{order:3;width:100%}.footer-right{gap:15px}}
@media(max-width:380px){.wrap{width:calc(100% - 36px)}.topbar{padding-inline:18px;gap:7px}.brand{font-size:13px;gap:8px}.brand-caption{font-size:6px}.brand-mark{width:28px;height:28px}.nav-cta{font-size:10px;padding:10px}.nav-cta span{margin-left:5px}.hero.wrap{padding:42px 18px}.hero h1{font-size:clamp(29px,10.8vw,41px)}.hero-eyebrow{font-size:9px}.hero-lede{font-size:12px}.hero-actions{gap:18px;flex-wrap:wrap}.button{font-size:11px;gap:17px;padding:14px 17px}.text-link{font-size:11px}.hero-meta{gap:13px;font-size:9px}.hero-meta b{font-size:8px;margin-right:3px}.hero-art{height:464px}.device{transform:translate(6px,-3px) rotate(-5deg) scale(.77)}.tag-left{left:8px;padding:10px}.float-tag strong{font-size:10px}.float-tag small{font-size:8px}.preview-caption{font-size:7px}.demo-switch{bottom:32px}.demo-switch button{font-size:10px;padding:8px 13px}.art-index{font-size:7px;bottom:11px}.ticker-track{width:calc(100% - 36px);gap:6px;font-size:9px}.ticker-track b{font-size:7px}.section h2,.workflow-copy h2,.about-section h2,.safety-main h2{font-size:29px}.feature-card{padding:22px}.workflow-visual{gap:5px;flex-wrap:wrap}.workflow-visual span{font-size:9px;padding:10px}.about-stats{flex-wrap:wrap}.download-wrap h2{font-size:29px}.footer-right{gap:10px}.announcement{flex-wrap:wrap;padding-inline:18px}}
@media(max-width:280px){.brand-caption{display:none}.nav-cta{display:none}.menu-toggle{margin-left:auto}.hero-meta{flex-wrap:wrap}.hero-art{height:420px}.device{transform:translate(0,-5px) rotate(-4deg) scale(.64)}.float-tag{display:none}.preview-caption span:last-child{display:none}.demo-switch button{padding:7px 10px}.ticker-track{flex-wrap:wrap;justify-content:center;white-space:normal}.ticker-track b{display:none}.hero h1{font-size:28px}.hero-lede br{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none}*,*:before,*:after{animation:none!important;transition:none!important}}