:root {
  color-scheme: light;
  --paper: #f2f5f9;
  --surface: #fff;
  --ink: #172235;
  --muted: #536177;
  --line: #dce3ed;
  --slate: #111a2b;
  --stage: #121d30;
  --blue: #304ea9;
  --ice: #b9caff;
  --pale: #eaf0ff;
  --dark-line: #b6cbf327;
  --warning: #79491b;
  --radius: 16px;
  font-family: "Segoe UI Variable", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}
* {box-sizing:border-box}
html {scroll-padding-top:86px}
body {margin:0;color:var(--ink);background:var(--paper);font-size:15px;line-height:1.6}
img {display:block;max-width:100%;height:auto}
a {color:inherit;text-decoration:none}
button,input {font:inherit}
button {cursor:pointer}
[hidden] {display:none!important}
h1,h2,h3,p,figure {margin:0}
:focus-visible {outline:2px solid #5877d5;outline-offset:4px}
.skip-link {position:fixed;z-index:4;top:8px;left:8px;padding:8px 14px;background:#fff;transform:translateY(-180%)}
.skip-link:focus {transform:none}
.wrap {width:min(1248px,calc(100% - 96px));margin-inline:auto}
.site-header {border-bottom:1px solid var(--line);background:var(--surface)}
.landing .site-header {border-color:var(--dark-line);background:var(--slate);color:#f3f6fc}
.site-nav {height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand {display:inline-flex;align-items:center;gap:10px;white-space:nowrap;font-weight:740;letter-spacing:-.035em}
.brand img {border-radius:8px}
.site-menu {display:flex;align-items:center;gap:34px;color:var(--muted);font-size:13px}
.site-menu a:hover,.site-footer a:hover,.return-link:hover {color:var(--blue)}
.landing .site-menu {color:#b7c5dc}
.landing .site-menu a:hover {color:#fff}
.button {display:inline-flex;align-items:center;justify-content:center;gap:16px;min-height:46px;padding:10px 17px;border:1px solid transparent;border-radius:8px;font-weight:650;font-size:14px;white-space:nowrap}
.button.small {min-height:36px;padding:7px 13px;font-size:12px;gap:8px}
.button.primary {background:var(--blue);color:#fff;box-shadow:0 2px 6px #243c8729}
.button.primary:hover {background:#233d8d}
.button.dark {background:var(--slate);color:#fff}
.button.dark:hover {background:#24344e}
.button.nav-action {background:#1d2a41;border-color:var(--dark-line);color:#eaf0fa}
.button.nav-action:hover {background:#283a57}
.button.quiet {border-color:var(--line);background:var(--surface);color:var(--ink)}
.button.quiet:hover {background:var(--pale)}
.eyebrow {color:var(--blue);font:670 12px/1.4 "Segoe UI Variable","Microsoft YaHei",sans-serif;letter-spacing:.075em}
.status-dot {display:inline-block;width:7px;height:7px;border-radius:50%;background:#5477cc;vertical-align:1px}
.amber-dot {background:#ae672b}
.hero-stage {color:#f1f5fe;background:radial-gradient(ellipse at 72% 63%,#233753 0%,var(--slate) 67%);border-bottom:1px solid #25354f}
.hero {display:grid;grid-template-columns:minmax(0,.91fr) minmax(0,1.09fr);gap:48px;align-items:center;padding-block:68px 76px}
.hero-kicker {display:flex;align-items:center;gap:10px;color:var(--ice)}
.hero-kicker::before {content:"";width:17px;height:1px;background:#92adfc}
.hero h1 {margin-top:19px;font-size:clamp(38px,4.45vw,67px);line-height:1.14;letter-spacing:-.052em;font-weight:740}
.hero h1 em {font-style:normal;color:var(--ice)}
.hero-text {color:#c2cee1;max-width:430px;margin-top:23px;font-size:16px;line-height:1.85;text-wrap:pretty}
.hero-text span {display:block}
.actions {display:flex;flex-wrap:wrap;gap:11px;margin-top:26px}
.hero .button.primary {background:#dbe5ff;color:#152449;box-shadow:none}
.hero .button.primary:hover {background:#fff}
.hero .button.quiet {background:#24354e99;color:#e7eefc;border-color:#9fb9eb53}
.hero .button.quiet:hover {background:#314769}
.relay-frame {position:relative;min-height:432px;isolation:isolate;overflow:hidden;background:var(--stage);border:1px solid #9fb9eb58;border-radius:18px;color:#fff;box-shadow:0 22px 55px #060c1a50}
.relay-photo {width:100%;height:100%;object-fit:cover;object-position:50% 54%;position:absolute;z-index:-2}
.relay-frame::before {position:absolute;content:"";inset:0;z-index:-1;background:linear-gradient(180deg,#0a1528d6,transparent 24%,transparent 67%,#0c162a5e)}
.relay-legend {position:absolute;top:20px;left:20px;right:20px;display:flex;align-items:center;gap:12px;font-size:11px;letter-spacing:.11em;font-weight:650;color:#eef4ff}
.relay-line {height:1px;flex:1;position:relative;background:#c6d8f793}
.relay-card {position:absolute;bottom:16px;right:16px;width:min(300px,calc(100% - 32px));padding:13px 14px;color:#edf3ff;background:#111c2ff5;border-radius:11px;border:1px solid #9db5dd59;box-shadow:0 10px 26px #09132247}
.relay-card-heading {display:flex;align-items:center;justify-content:space-between;gap:8px}
.relay-card-heading strong,.relay-card-heading small {display:block}
.relay-card-heading small,.relay-card p {font-size:12px;color:#c3cfe3}
.relay-card-heading strong {font-size:15px;margin-top:3px}
.relay-card p {margin-top:9px;padding-top:8px;border-top:1px solid var(--dark-line)}
.relay-pill {display:inline-flex;align-items:center;gap:6px;white-space:nowrap;background:#263f68;padding:3px 7px;border-radius:5px;font-size:11px;color:#e0eaff;font-weight:650}
.relay-pill .status-dot {background:#9dbbff}
.relay-pill[data-state="message"] {color:#e0e7f4;background:#374157}
.relay-pill[data-state="message"] .status-dot {background:#aebcd6}
.relay-pill[data-state="confirm"] {color:#ffe2b8;background:#5a4329}
.relay-pill[data-state="confirm"] .status-dot {background:#ffc781}
.section-head {display:grid;gap:9px;margin-bottom:24px}
.section-head h2 {margin-top:7px}
.scene-heading {display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap}
.section-head h2,.download-bar h2 {font-size:clamp(28px,3.5vw,47px);line-height:1.24;letter-spacing:-.055em;text-wrap:balance}
.scenes,.pairing {padding-block:56px}
.pairing {border-top:1px solid var(--line)}
.scene-controls,.filters {display:flex;flex-wrap:wrap;gap:8px}
.scene-controls {margin-bottom:2px}
.scene-controls button,.filters button {min-height:40px;white-space:nowrap;padding:7px 12px;border:1px solid var(--line);border-radius:7px;background:var(--surface);color:var(--muted);font-weight:630}
.scene-controls button[aria-pressed="true"],.filters button[aria-pressed="true"] {background:var(--blue);color:#fff;border-color:var(--blue)}
.scene-controls button:hover:not([aria-pressed="true"]),.filters button:hover:not([aria-pressed="true"]) {background:var(--pale)}
.scene-feature {display:grid;grid-template-columns:0.86fr 1.14fr;min-height:292px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface)}
.scene-copy {padding:clamp(20px,5vw,65px);align-self:center}
.scene-copy h3 {margin-block:10px;font-size:clamp(22px,2.4vw,34px);line-height:1.28;letter-spacing:-.04em}
.scene-copy p:last-child {color:var(--muted);line-height:1.75}
.scene-feature img {width:100%;height:100%;max-height:360px;object-fit:cover}
.connection-art {width:100%;max-height:320px;object-fit:cover;object-position:center 63%;border-radius:var(--radius);border:1px solid var(--line)}
.pair-content {display:grid;grid-template-columns:1.08fr .92fr;gap:30px;align-items:center;margin-top:20px}
.steps {list-style:none;margin:0;padding:0;border-block:1px solid var(--line)}
.steps li {display:flex;gap:16px;padding:16px 8px;border-bottom:1px solid var(--line)}
.steps li:last-child {border:0}
.steps b {color:var(--blue);font:600 14px/1.7 Consolas,monospace}
.steps p,.download-copy p:nth-of-type(2) {color:var(--muted);font-size:14px;margin-top:6px}
.download-bar {border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);display:grid;grid-template-columns:.7fr 1.3fr;align-items:stretch;overflow:hidden}
.download-bar img {width:100%;height:100%;max-height:248px;object-fit:cover;object-position:center 55%}
.download-copy {align-self:center;padding:26px 32px}
.download-copy h2 {font-size:clamp(24px,2.6vw,38px);margin-top:7px}
.download-copy .button {margin-top:16px}
.site-footer {display:flex;justify-content:space-between;gap:16px;padding-block:32px;color:var(--muted);font-size:13px}

@media (max-width:1000px){
  .wrap {width:calc(100% - 48px)}
  .hero {gap:24px;padding-block:48px}
  .relay-frame {min-height:380px}
  .console-layout {grid-template-columns:158px minmax(0,1fr)}
  .console-main {padding-inline:22px}
}
@media (max-width:740px){
  .wrap {width:calc(100% - 32px)}
  .site-nav {height:62px}
  .site-menu {display:none}
  .site-nav .brand {font-size:14px;gap:8px}
  .site-nav .brand img {width:27px}
  .hero {grid-template-columns:1fr;gap:23px;padding-block:32px 35px}
  .hero h1 {font-size:clamp(35px,9.3vw,57px);margin-top:12px}
  .hero-text {font-size:14px;margin-top:16px}
  .actions {margin-top:17px}
  .relay-frame {min-height:286px;border-radius:13px}
  .relay-legend {top:13px;left:13px;right:13px}
  .relay-card {right:10px;bottom:10px;max-width:240px;padding:8px 10px}
  .relay-card-heading strong {font-size:13px}
  .relay-card p {margin-top:6px;padding-top:6px}
  .scenes,.pairing {padding-block:34px}
  .scene-feature,.pair-content {grid-template-columns:1fr}
  .scene-feature img {max-height:260px}
  .pair-content {gap:13px}
  .download-bar {grid-template-columns:1fr}
  .download-bar img {max-height:168px}
  .download-copy {padding:19px 20px}

}

/* Existing public navigation, legal links and narrow-screen controls. */
.header-actions{display:flex;align-items:center;gap:12px}
.menu-toggle{display:none}
.scene-controls button{min-height:40px;white-space:nowrap;padding:7px 12px;border:1px solid var(--line);border-radius:7px;background:var(--surface);color:var(--muted);font-weight:630}
.scene-controls button[aria-selected="true"]{background:var(--blue);color:#fff;border-color:var(--blue)}
.scene-controls button:hover:not([aria-selected="true"]){background:var(--pale)}
.relay-pill[data-state="approval"]{color:#ffe2b8;background:#5a4329}
.relay-pill[data-state="approval"] .status-dot{background:#ffc781}
.start-note{font-size:12px;color:var(--muted);margin-top:18px}
.platform-links{display:flex;gap:8px 14px;flex-wrap:wrap;margin-top:14px;font-size:11px;color:var(--blue)}
.platform-links a{border-bottom:1px solid var(--line);padding-bottom:3px}
.faq-section{display:grid;grid-template-columns:.7fr 1.3fr;gap:64px;padding-block:56px;width:min(1248px,calc(100% - 96px));margin-inline:auto}
.faq-head h2{font-size:clamp(25px,3vw,38px);line-height:1.4;letter-spacing:-.04em;margin-top:9px}
.faq-head>p:last-child{margin-top:20px;color:var(--muted);font-size:13px;line-height:1.9}
.text-link{font-weight:650;color:var(--blue)}
.faq-list details{border-bottom:1px solid var(--line)}
.faq-list details:first-child{border-top:1px solid var(--line)}
.faq-list summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:15px;padding:18px 0;font-size:14px;font-weight:650}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary>span{color:var(--muted);font-size:20px;font-weight:400}
.faq-list details[open] summary>span{transform:rotate(45deg)}
.faq-list details p{padding:0 20px 18px 0;color:var(--muted);font-size:13px;line-height:1.9}
.site-footer{display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between;align-items:flex-start;border-top:1px solid var(--line);padding-block:28px}
.site-footer>div>p{font-size:12px;margin-top:9px}
.site-footer nav{display:flex;flex-wrap:wrap;gap:12px 20px;font-size:12px}
.site-footer .footer-legal{display:flex;gap:18px;justify-content:space-between;flex-wrap:wrap;flex-basis:100%;border-top:1px solid var(--line);padding-top:17px;font-size:10px}
.footer-legal small{font-size:10px}
@media(max-width:860px){
 .site-menu{display:none;position:absolute;left:0;right:0;top:71px;padding:12px 20px;background:var(--slate);border-bottom:1px solid #3b4a65;z-index:10;box-shadow:0 10px 16px #0002}
 .site-menu.is-open{display:flex;align-items:stretch;flex-direction:column;gap:0}
 .site-menu a{padding:11px 4px}
 .menu-toggle{display:flex;flex-direction:column;gap:5px;align-items:center;justify-content:center;width:36px;height:36px;background:#1d2a41;border:1px solid #a1b5dc53;border-radius:7px}
 .menu-toggle span{height:1.5px;width:15px;background:#eaf0fa}
 .faq-section{gap:25px}
}
@media(max-width:740px){
 .site-menu{top:61px}
 .header-actions{gap:8px}
 .site-nav{gap:10px}
 .faq-section{grid-template-columns:1fr;padding-block:36px;width:calc(100% - 32px)}
 .faq-list summary{font-size:12px}
 .faq-list details p{font-size:12px}
 .site-footer nav{font-size:11px;gap:12px}
 .platform-links{font-size:10px}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}

/* Bright daylight direction: fixed light palette, clear blue actions and warm accents. */
:root{color-scheme:light;--paper:#fffdfa;--surface:#fff;--ink:#202538;--muted:#596277;--line:#e5e8ef;--slate:#fff;--stage:#e1ecff;--blue:#285dff;--ice:#285dff;--pale:#edf3ff;--dark-line:#e3e8f2;--radius:22px}
html{-webkit-font-smoothing:antialiased}.landing .site-header{background:#fff;color:var(--ink);border-color:var(--line)}.site-nav{height:80px}.brand{letter-spacing:-.025em}.brand img{border-radius:10px}.landing .site-menu{color:var(--muted)}.landing .site-menu a:hover{color:var(--blue)}
.button{border-radius:11px;min-height:49px;padding:12px 21px;transition:background .16s,box-shadow .16s,transform .16s}.button:hover{transform:translateY(-1px)}.button.small{min-height:38px;padding:8px 15px}.button.primary,.hero .button.primary{background:var(--blue);color:#fff;box-shadow:0 5px 14px #285dff24}.button.primary:hover,.hero .button.primary:hover{background:#174ce8}.button.quiet,.hero .button.quiet{background:#fff;color:var(--ink);border-color:#d8deec}.hero .button.quiet:hover{background:var(--pale)}.button.nav-action{background:var(--pale);color:var(--blue);border-color:#dce5ff}.button.nav-action:hover{background:#e1eaff}
.hero-stage{background:linear-gradient(115deg,#fffdfa 48%,#f0f5ff);color:var(--ink);border-color:var(--line);overflow:hidden}.hero{grid-template-columns:.93fr 1.07fr;gap:54px;padding-block:72px 78px}.hero-kicker{display:inline-flex;color:#41516c;background:#fff2e9;border:1px solid #ffe0c9;padding:5px 10px;border-radius:7px;letter-spacing:0}.hero-kicker::before{width:6px;height:6px;border-radius:50%;background:#e66e30}.hero h1{font-family:"Segoe UI Variable Display","PingFang SC","Microsoft YaHei",sans-serif;font-size:clamp(42px,4.75vw,70px);line-height:1.23;letter-spacing:-.06em;font-weight:760;margin-top:21px}.hero h1 em{color:var(--blue)}.hero-text{color:var(--muted);line-height:1.95;margin-top:22px}.actions{margin-top:29px;gap:12px}
.relay-frame{min-height:460px;background:#d9e8ff;border-color:#d9e4f6;border-radius:26px;box-shadow:0 20px 50px #285dff12;color:var(--ink)}.relay-frame::before{display:none}.relay-photo{object-position:center}.relay-legend{color:#fff;letter-spacing:.04em}.relay-legend>span:not(.relay-line){padding:4px 9px;border:1px solid #fff8;border-radius:6px;background:#1746a329}.relay-line{background:#ffffff9c}.relay-card{bottom:18px;right:18px;width:min(310px,calc(100% - 36px));padding:15px 16px;background:#fffffff5;color:var(--ink);border:1px solid #fff;border-radius:14px;box-shadow:0 8px 24px #233c6b1a}.relay-card-heading small,.relay-card p{color:var(--muted);font-size:11px}.relay-card p{margin-top:11px;padding-top:10px}.relay-pill{background:var(--pale);color:#214ed6;border-radius:6px;font-size:10px;padding:4px 8px}.relay-pill .status-dot{background:var(--blue)}.relay-pill[data-state="message"]{color:#6648bb;background:#f0eaff}.relay-pill[data-state="message"] .status-dot{background:#8060d4}.relay-pill[data-state="approval"]{color:#9b4b16;background:#fff0dc}.relay-pill[data-state="approval"] .status-dot{background:#e78436}
.section-head{margin-bottom:30px}.section-head h2,.download-bar h2{font-size:clamp(28px,3vw,42px);line-height:1.3;letter-spacing:-.045em;font-weight:720}.scenes,.pairing{padding-block:70px}.scene-controls{gap:5px;padding:5px;border:1px solid var(--line);border-radius:11px;background:#f2f5fa}.scene-controls button{min-height:39px;border:0;background:transparent;font-size:12px;padding:8px 13px}.scene-controls button[aria-selected="true"]{background:#fff;color:var(--blue);box-shadow:0 2px 6px #233b6c12}.scene-controls button:hover:not([aria-selected="true"]){background:#e6edfa}.scene-feature{min-height:330px;background:var(--pale);border-color:#e2e9f3}.scene-copy{padding:clamp(24px,4vw,58px)}.scene-copy h3{font-size:clamp(24px,2.3vw,33px);line-height:1.35}.scene-copy p:last-child{line-height:1.85;font-size:14px}.pair-content{gap:48px}.connection-art{max-height:330px;object-position:center}.steps{border:0}.steps li{padding:18px 0;gap:18px}.steps li:first-child{padding-top:0}.steps b{display:grid;place-items:center;flex-shrink:0;align-self:flex-start;width:34px;height:34px;color:#9b4b16;background:#fff0df;border-radius:10px;font:650 13px/1 Consolas,monospace}.steps strong{font-size:16px}.steps p{font-size:13px;line-height:1.85}
.download-bar{background:#fff2e8;border-color:#ecdccf;grid-template-columns:.72fr 1.28fr}.download-bar img{max-height:300px}.download-copy{padding:32px 38px}.download-copy h2{font-size:clamp(25px,2.6vw,36px)}.download-copy .button{margin-top:22px}.platform-links{color:#4b5670;gap:8px 16px}.platform-links a{border-color:#dfc9b8}.faq-section{padding-block:70px}.faq-list summary>span{display:grid;place-items:center;width:24px;height:24px;flex-shrink:0;border-radius:50%;background:var(--pale);color:var(--blue);font-size:18px}.site-footer .brand{color:var(--ink)}
@media(max-width:1100px){.hero{gap:30px;padding-block:50px}.hero h1{font-size:clamp(40px,4.9vw,57px)}.relay-frame{min-height:400px}.pair-content{gap:30px}.faq-section{width:calc(100% - 48px)}}
@media(max-width:860px){.site-menu{top:79px;background:#fff;border-color:var(--line);box-shadow:0 12px 20px #1b355515}.menu-toggle{background:#fff;border-color:var(--line);border-radius:9px}.menu-toggle span{background:var(--ink)}.hero{gap:24px}.relay-frame{min-height:360px}.hero-text{font-size:14px}}
@media(max-width:740px){.wrap{width:calc(100% - 36px)}.site-nav{height:66px}.site-menu{top:65px}.hero{grid-template-columns:1fr;gap:28px;padding-block:32px 36px}.hero h1{font-size:clamp(41px,10.6vw,65px);margin-top:17px;line-height:1.23}.hero-text{font-size:14px;margin-top:18px}.hero-kicker{font-size:11px}.actions{margin-top:22px}.button{min-height:46px;padding-inline:18px;font-size:13px}.button.small{font-size:11px;min-height:36px;padding-inline:11px}.relay-frame{min-height:310px;border-radius:20px}.relay-card{right:12px;bottom:12px;max-width:260px;padding:11px 12px}.relay-card-heading strong{font-size:14px}.relay-card p{font-size:10px}.scenes,.pairing{padding-block:40px}.section-head{margin-bottom:23px}.section-head h2{font-size:29px}.scene-controls button{font-size:11px;padding:8px 12px}.scene-copy{padding:28px}.scene-copy h3{font-size:25px}.scene-copy p:last-child{font-size:13px}.pair-content{gap:26px}.steps strong{font-size:15px}.download-bar{grid-template-columns:1fr}.download-bar img{max-height:210px}.download-copy{padding:27px}.faq-section{width:calc(100% - 36px);padding-block:42px;gap:24px}.faq-list summary{font-size:13px}}

/* Keep the device interfaces visible beside the task caption. */
.relay-card{left:18px;right:auto;width:min(290px,calc(100% - 36px));padding:12px 14px}
@media(max-width:740px){.relay-card{left:12px;right:auto;max-width:225px;padding:10px 12px}}