:root{--ground:#03080e;--ink:#f4f6fa;--muted:#b1bac7;--accent:#b9e5fc;--surface:#0c1420;--font:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;--gutter:clamp(24px,5.6vw,88px);--display:clamp(64px,6.5vw,96px);--heading:clamp(36px,3.5vw,54px);--body:clamp(17px,1.4vw,21px)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px;scrollbar-color:#536778 var(--ground)}body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--font);font-size:var(--body);line-height:1.65}::selection{background:var(--accent);color:var(--ground)}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer;border:0}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,[tabindex]:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:6px}p,h1,h2{margin:0}h1,h2{font-weight:600;letter-spacing:-.03em;text-wrap:balance}button,a{transition:color .2s,background .2s,transform .2s}img{max-width:100%}button:active,.primary:active{transform:scale(.97)}.container{width:100%;max-width:1600px;margin-inline:auto;padding-inline:var(--gutter)}.skip-link{position:absolute;top:-100px;left:24px;background:var(--accent);color:var(--ground);padding:12px 18px;z-index:20}.skip-link:focus{top:12px}
.header{position:absolute;inset:0 0 auto;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:26px var(--gutter);gap:24px}.brand{display:flex;align-items:center;gap:16px;font-weight:600;font-size:21px;white-space:nowrap}.brand img{width:64px;height:36px;object-fit:contain;filter:invert(1);mix-blend-mode:screen}.header nav{display:flex;align-items:center;gap:42px;font-size:16px}.header nav a{padding:8px 0}.header nav a:hover{color:var(--accent)}
.stage{position:relative;isolation:isolate;overflow:hidden;background:var(--ground)}.hero{min-height:750px;height:min(960px,100svh);display:flex;align-items:center}.hero-art{position:absolute;inset:-8% -13% -8% 26%;z-index:-2;pointer-events:none;mask-image:linear-gradient(90deg,transparent,#000 16%,#000 90%,transparent)}.hero-art img{width:100%;height:100%;object-fit:cover;object-position:center}.hero::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(90deg,rgba(3,8,14,.58),rgba(3,8,14,.25) 32%,transparent 62%)}.hero-content{padding-top:80px;padding-bottom:52px}.hero h1{font-size:var(--display);line-height:1.17;max-width:6em}.hero-description{margin-top:30px;color:var(--muted);max-width:31em}.primary{display:inline-flex;align-items:center;justify-content:center;gap:16px;padding:13px 28px;min-height:48px;margin-top:36px;background:var(--accent);color:var(--ground);border-radius:999px;font-size:18px}.primary svg{width:20px;height:20px;stroke:currentColor;stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round}.primary:hover{background:#dbf2ff;transform:translateY(-2px)}
.stage-background{position:absolute;inset:0;z-index:-2;width:100%;height:100%;object-fit:cover;pointer-events:none}.ideas{min-height:610px;display:flex;align-items:center}.ideas-content{padding-top:86px;padding-bottom:86px}.ideas h2{font-size:var(--heading);line-height:1.25;max-width:12em}.lead{margin-top:24px;color:var(--muted);max-width:31em}.ideas .lead{max-width:29em}.idea-tabs{display:flex;gap:24px;flex-wrap:wrap;margin-top:44px;max-width:540px}.idea-tabs button{background:transparent;padding:10px 22px;min-width:68px;min-height:46px;border-radius:999px;font-size:18px}.idea-tabs button[aria-selected=true]{color:var(--ground);background:var(--accent)}.idea-tabs button:hover{color:var(--accent)}.idea-tabs button[aria-selected=true]:hover{color:var(--ground);background:#d9f1ff}.idea-panel{margin-top:28px;color:var(--muted);font-size:18px;max-width:29em;min-height:30px}.idea-panel.changing{animation:panel-in .35s ease-out}.scene-mount canvas{display:block;width:100%;height:100%}.technology{min-height:620px;display:flex;align-items:center}.solar-background{opacity:0}.technology.has-solar .solar-background{opacity:1}.technology.has-solar .solar-fallback{opacity:0}.solar-scene{position:absolute;inset:0 37% 0 -18%;z-index:-1;pointer-events:none}.technology-content{padding-block:100px}.technology-copy{margin-left:60%;max-width:520px}.technology h2{font-size:clamp(44px,4.8vw,72px);line-height:1.25}.technology .lead{max-width:22em}.motion-control{display:inline-flex;gap:9px;align-items:center;background:transparent;color:var(--muted);font-size:14px;margin-top:32px;padding:8px 0;min-height:44px}.motion-control:hover{color:var(--ink)}.motion-control svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}.motion-control[hidden]{display:none}
.footer{position:relative;isolation:isolate;overflow:hidden;min-height:350px;background:var(--ground)}.footer-content{padding-top:64px;padding-bottom:28px}.footer-brand{font-size:23px}.footer-brand img{width:70px;height:42px}.footer-tagline{margin-top:18px;color:var(--muted)}.company-intro{font-size:16px;color:var(--muted);margin-top:14px;max-width:36em}.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;gap:20px 32px;font-size:14px;color:var(--muted);margin-top:44px}.footer-bottom .text-button{margin-left:auto}.text-button{padding:8px 0;background:transparent;font-size:inherit;min-height:44px}.text-button:hover,#filing a:hover{color:var(--ink)}#filing{display:flex;align-items:center;gap:20px;flex-wrap:wrap}#filing img{width:20px;height:20px;vertical-align:middle;margin-right:6px}.visual-notes{margin-top:8px;color:var(--muted);font-size:13px;max-width:860px}.visual-notes summary{cursor:pointer;min-height:40px;padding:8px 0}.visual-notes p{margin-top:10px}.visual-notes a{text-decoration:underline;text-underline-offset:3px}
dialog{width:min(720px,calc(100% - 32px));max-height:85svh;overflow:auto;background:var(--surface);color:var(--ink);padding:32px;border:0;border-radius:16px}dialog::backdrop{background:#000b}.dialog-top{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:28px}.dialog-top h2{font-size:32px}.dialog-top button{background:#1d2b3c;min-height:44px;padding:8px 16px;border-radius:999px;font-size:16px}#log-content h2{font-size:22px;margin:24px 0 20px}#log-content h3{font-size:20px;margin:20px 0 12px}#log-content h4{font-size:18px;margin:18px 0 10px}#log-content p,#log-content li{font-size:16px}#log-content ol{padding-left:24px;margin:12px 0}#log-content li{margin-top:8px}.enter.is-entered{animation:content-in .65s cubic-bezier(.16,1,.3,1) both}.enter:nth-child(2){animation-delay:80ms}.motion-paused *{animation-play-state:paused!important}@keyframes content-in{from{transform:translateY(18px);opacity:.45}to{transform:translateY(0);opacity:1}}@keyframes panel-in{from{opacity:.45;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:1700px){.hero-art{right:-4%;left:34%}.ideas,.technology{min-height:680px}}
@media(max-width:1050px){.hero{min-height:700px}.hero h1{font-size:74px}.ideas{min-height:550px}.ideas .lead{max-width:23em}.ideas h2{font-size:36px}.idea-tabs{gap:14px}.idea-tabs button{padding-inline:18px}.technology-copy{margin-left:59%}.technology h2{font-size:54px}.technology{min-height:540px}.solar-scene{right:36%;left:-25%}}
@media(max-width:650px){:root{--gutter:24px;--body:17px}.header{padding:20px var(--gutter);gap:12px}.brand{font-size:17px;gap:9px}.brand img{width:45px;height:28px}.header nav{font-size:14px;gap:20px}.hero{height:auto;min-height:880px;align-items:flex-start}.hero-content{padding-top:150px;padding-bottom:400px}.hero h1{font-size:58px;line-height:1.2}.hero-description{max-width:18em;margin-top:24px}.primary{font-size:16px;margin-top:28px;padding:12px 24px}.hero-art{inset:auto -24% -38px -22%;height:520px;mask-image:linear-gradient(180deg,transparent,#000 18%,#000 94%,transparent)}.hero::after{background:linear-gradient(180deg,rgba(3,8,14,.3),transparent 60%)}.ideas{min-height:760px;align-items:flex-start}.ideas-content{padding-top:60px;padding-bottom:360px}.ideas h2{font-size:30px}.ideas .lead{max-width:21em;margin-top:20px}.idea-tabs{gap:12px;margin-top:28px}.idea-tabs button{font-size:16px;padding:9px 17px;min-width:60px;min-height:44px}.idea-panel{font-size:16px;margin-top:22px}.technology{min-height:790px;align-items:flex-start}.technology-content{padding-top:60px;padding-bottom:400px}.technology-copy{margin-left:0;max-width:100%}.technology h2{font-size:46px}.technology .lead{max-width:22em;margin-top:22px}.technology .motion-control{margin-top:18px}.solar-scene{inset:350px -12% 0 -10%}.solar-fallback{inset:350px 0 0;width:135%;max-width:none;height:440px;object-position:30% center}.footer{min-height:450px}.footer-content{padding-top:48px;padding-bottom:24px}.footer-brand{font-size:22px}.footer-brand img{width:57px;height:34px}.footer-tagline{font-size:17px}.company-intro{font-size:15px;max-width:22em}.footer-bottom{margin-top:32px;flex-direction:column;align-items:flex-start;gap:12px;font-size:13px}.footer-bottom .text-button{margin-left:0}.visual-notes{margin-top:6px}.dialog-top h2{font-size:28px}dialog{padding:24px}}
@media(max-width:360px){.header nav{gap:14px}.brand{font-size:16px}.brand img{width:37px}.hero h1{font-size:52px}.idea-tabs{gap:5px}.idea-tabs button{padding-inline:15px}.ideas h2{font-size:28px}}
.keep-together{white-space:nowrap}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}



/* Text stays on an independent, transparent layer above complete video frames. */
.ambient-media{position:absolute;inset:0;z-index:-2;pointer-events:none;overflow:hidden;background:var(--ground)}
.ambient-media picture,.ambient-media img,.ambient-media video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;max-width:none}
.ambient-media video{opacity:0}.ambient-media.has-frame video{opacity:1}.ambient-media.show-poster video{opacity:0}
.hero-art.ambient-media{inset:0;mask-image:none}.hero-art.ambient-media img{object-fit:cover}
.ideas-content{background:transparent}.hero::after{background:linear-gradient(90deg,rgba(3,8,14,.32),transparent 58%)}
@media(min-width:651px) and (max-width:1050px){.hero-description{max-width:36vw}.hero::after{background:linear-gradient(90deg,rgba(3,8,14,.94),rgba(3,8,14,.82) 40%,rgba(3,8,14,.2) 66%,transparent 90%)}}
.horizon-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,8,14,.42),transparent 75%)}
.video-retry{position:absolute;right:var(--gutter);bottom:20px;z-index:2;background:rgba(3,8,14,.8);border:1px solid #718ba3;border-radius:999px;padding:10px 18px;min-height:44px;font-size:14px}
.video-retry[hidden]{display:none}
@media(max-width:650px){.hero-art.ambient-media{inset:auto 0 0;height:560px;mask-image:linear-gradient(180deg,transparent,#000 16%,#000 94%,transparent)}.hero::after{background:none}.earth-media{inset:0}.horizon-media::after{background:linear-gradient(180deg,rgba(3,8,14,.2),rgba(3,8,14,.3))}}

/* Three sections: supplied black hole, one solar system, reconstructed Earth. */
.combined{min-height:780px}.combined .ideas-content{padding-block:96px;max-width:none}
.combined-copy{margin-left:calc(60vw - var(--gutter) + 24px);max-width:560px}.combined h2{font-size:var(--heading);line-height:1.25}
.combined .lead{max-width:28em}.combined .idea-tabs{gap:10px;margin-top:32px}.combined .idea-tabs button{padding-inline:17px}
.combined .idea-panel{min-height:60px}.technology-intro{margin-top:30px;scroll-margin-top:48px}
.technology-intro h3{font-size:24px;line-height:1.35;letter-spacing:-.02em;font-weight:600;margin:0}
.technology-intro p{font-size:17px;color:var(--muted);margin-top:12px;max-width:26em}
.combined .motion-control{margin-top:22px}.combined .solar-scene{inset:0 40% 0 0}
.combined .solar-fallback{width:60%;object-fit:contain;object-position:center}
.solar-fallback img{display:block;width:100%;height:100%;object-fit:contain;object-position:left center}
.footer{min-height:550px;display:flex;flex-direction:column}.footer-scene{position:relative;isolation:isolate;overflow:hidden;flex:1;min-height:500px}.footer-content{padding-top:72px;padding-bottom:36px}
.footer-links{display:flex;flex-wrap:wrap;align-items:center;gap:10px 28px;margin-top:28px;font-size:14px;color:var(--muted)}
.footer-links a{display:inline-flex;align-items:center;min-height:44px}.footer-links a:hover{color:var(--ink)}
.footer .visual-notes{margin-top:12px;max-width:880px}
.footer-compliance{position:relative;background:var(--ground);border-top:1px solid #24313e}
.footer-compliance .footer-bottom{display:flex;flex-direction:column;justify-content:center;gap:8px;margin-top:0;padding-block:24px 28px;text-align:center;font-size:13px;color:#b9c3ce}
.footer-compliance #filing{justify-content:center;gap:4px 24px}.footer-compliance #filing a{display:inline-flex;align-items:center;min-height:44px}
#filing[hidden]{display:none}
@media(max-width:650px){.footer-scene{min-height:620px}}
@media(max-width:1050px){.combined{min-height:1060px;align-items:flex-start}.combined .ideas-content{padding-top:72px;padding-bottom:520px}.combined-copy{margin-left:0;max-width:640px}.combined .solar-scene{inset:520px 0 24px}.combined .solar-fallback{inset:520px 0 24px;width:100%;height:516px}.combined .idea-panel{min-height:30px}.combined .lead{max-width:30em}}
@media(max-width:650px){.combined{min-height:1080px}.combined .ideas-content{padding-top:60px;padding-bottom:450px}.combined h2{font-size:30px}.combined .lead{max-width:22em}.combined .idea-tabs{gap:8px;margin-top:28px}.combined .idea-tabs button{padding-inline:15px}.combined .solar-scene{inset:620px 0 20px}.combined .solar-fallback{inset:620px 0 20px;height:440px}.technology-intro{margin-top:26px}.technology-intro h3{font-size:22px}.technology-intro p{font-size:16px}.footer{min-height:700px}.footer-content{padding-top:48px;padding-bottom:30px}.footer-bottom{margin-top:40px}.horizon-media::after{background:linear-gradient(180deg,rgba(3,8,14,.12),transparent 65%,rgba(3,8,14,.3))}}


/* One continuous star field: the approved solar-system background. */
body{isolation:isolate}
.universe-backdrop{position:fixed;inset:-32px 0 auto;height:calc(100svh + 64px);z-index:-1;pointer-events:none;background:var(--ground) url("/releases/8a1b0a5822f932d4/assets/space-field.png") center/cover no-repeat}
.stage,.footer,.ambient-media{background:transparent}
.hero-art.ambient-media{-webkit-mask-image:url("/releases/8a1b0a5822f932d4/assets/black-hole-mask-desktop.png");mask-image:url("/releases/8a1b0a5822f932d4/assets/black-hole-mask-desktop.png");-webkit-mask-size:cover;mask-size:cover;-webkit-mask-position:center;mask-position:center;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat}
.horizon-media{-webkit-mask-image:url("/releases/8a1b0a5822f932d4/assets/earth-mask-desktop.png");mask-image:url("/releases/8a1b0a5822f932d4/assets/earth-mask-desktop.png");-webkit-mask-size:contain;mask-size:contain;-webkit-mask-position:right bottom;mask-position:right bottom;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat}
.horizon-media img,.horizon-media video{object-fit:contain;object-position:right bottom}
.footer-scene{overflow:visible}
.footer-compliance{background:transparent;border-top:0}
.footer-compliance .footer-bottom{align-items:center;text-shadow:0 1px 3px #03080e}
@media(max-width:650px){
 .hero-art.ambient-media{-webkit-mask-image:url("/releases/8a1b0a5822f932d4/assets/black-hole-mask-mobile.png");mask-image:url("/releases/8a1b0a5822f932d4/assets/black-hole-mask-mobile.png")}
 .horizon-media{-webkit-mask-image:url("/releases/8a1b0a5822f932d4/assets/earth-mask-mobile.png");mask-image:url("/releases/8a1b0a5822f932d4/assets/earth-mask-mobile.png")}
}