.scroll-stack-scroller{height:var(--stack-required-height,520px);scrollbar-width:thin;scrollbar-color:#47668b transparent;overscroll-behavior-y:auto;border-radius:12px;position:relative;overflow:hidden auto}.scroll-stack-inner{padding:32px 5px 0;position:relative}.scroll-stack-card{transform-origin:top;will-change:transform;backface-visibility:hidden;margin-bottom:44px;position:relative}.scroll-stack-card:nth-last-child(2){margin-bottom:0}.scroll-stack-end{height:var(--stack-tail,90px);pointer-events:none}.scroll-stack-scroller:focus-visible{outline-offset:3px;outline:2px solid #7dbdff}@media (prefers-reduced-motion:reduce){.scroll-stack-scroller{scroll-behavior:auto}.scroll-stack-card{will-change:auto}}
.glass-surface{justify-content:center;align-items:center;transition:opacity .26s ease-out;display:flex;position:relative;overflow:hidden}.glass-surface__filter{pointer-events:none;opacity:0;z-index:-1;width:100%;height:100%;position:absolute;inset:0}.glass-surface__content{border-radius:inherit;z-index:1;justify-content:center;align-items:center;width:100%;height:100%;padding:.5rem;display:flex;position:relative}.glass-surface--svg{background:var(--lightningcss-light,hsl(0 0% 100%/var(--glass-frost,0)))var(--lightningcss-dark,hsl(0 0% 0%/var(--glass-frost,0)));-webkit-backdrop-filter:var(--filter-id) saturate(var(--glass-saturation,1));backdrop-filter:var(--filter-id) saturate(var(--glass-saturation,1));box-shadow:inset 0 0 2px 1px var(--lightningcss-light,#00000026)var(--lightningcss-dark,#ffffff59),inset 0 0 10px 4px var(--lightningcss-light,#0000001a)var(--lightningcss-dark,#ffffff26),0 4px 16px #11111a0d,0 8px 24px #11111a0d,0 16px 56px #11111a0d,inset 0 4px 16px #11111a0d,inset 0 8px 24px #11111a0d,inset 0 16px 56px #11111a0d;box-shadow:inset 0 0 2px 1px var(--lightningcss-light,lab(0% 0 0/.15))var(--lightningcss-dark,lab(100% 0 0/.35)),inset 0 0 10px 4px var(--lightningcss-light,lab(0% 0 0/.1))var(--lightningcss-dark,lab(100% 0 0/.15)),0 4px 16px lab(5.32203% 1.61424 -5.88284/.0509804),0 8px 24px lab(5.32203% 1.61424 -5.88284/.0509804),0 16px 56px lab(5.32203% 1.61424 -5.88284/.0509804),inset 0 4px 16px lab(5.32203% 1.61424 -5.88284/.0509804),inset 0 8px 24px lab(5.32203% 1.61424 -5.88284/.0509804),inset 0 16px 56px lab(5.32203% 1.61424 -5.88284/.0509804)}.glass-surface--fallback{-webkit-backdrop-filter:blur(12px)saturate(1.8)brightness(1.1);background:#ffffff40;border:1px solid #ffffff4d;box-shadow:0 8px 32px #1f268733,0 2px 16px #1f26871a,inset 0 1px #fff6,inset 0 -1px #fff3}@media (prefers-color-scheme:dark){.glass-surface--fallback{-webkit-backdrop-filter:blur(12px)saturate(1.8)brightness(1.2);background:#ffffff1a;border:1px solid #fff3;box-shadow:inset 0 1px #fff3,inset 0 -1px #ffffff1a}}@supports not ((-webkit-backdrop-filter:blur(10px)) or (backdrop-filter:blur(10px))){.glass-surface--fallback{background:#fff6;box-shadow:inset 0 1px #ffffff80,inset 0 -1px #ffffff4d}.glass-surface--fallback:before{content:"";border-radius:inherit;z-index:-1;background:#ffffff26;position:absolute;inset:0}}@supports not ((-webkit-backdrop-filter:blur(10px)) or (backdrop-filter:blur(10px))){@media (prefers-color-scheme:dark){.glass-surface--fallback{background:#0006}.glass-surface--fallback:before{background:#ffffff0d}}}.glass-surface:focus-visible{outline-offset:2px;outline:2px solid var(--lightningcss-light,#007aff)var(--lightningcss-dark,#0a84ff)}
.light-tunnel-container{width:100%;height:100%;position:relative;overflow:hidden}.light-tunnel-container[data-renderer=fallback]{background:repeating-conic-gradient(from 8deg at 50% 72%,#0000 0deg 13deg,#65bbff30 13.2deg 13.4deg,#0000 13.6deg 24deg);-webkit-mask-image:radial-gradient(at 50% 72%,#0000 10%,#000 75%);mask-image:radial-gradient(at 50% 72%,#0000 10%,#000 75%)}.light-tunnel-container[data-renderer=fallback] canvas{display:none}
@font-face{font-family:GOPAI Display;src:url(/fonts/gopai-display-noto-sc.woff2)format("woff2");font-style:normal;font-weight:100 900;font-display:swap}.landing{--landing-bg:#020610;--earth-horizon:clamp(345px, 56svh, 610px);--earth-scene-width:max(100vw, 1050px);--landing-text:#f3f6fd;--landing-muted:#a9b8cc;--landing-border:#d0e5ff14;--landing-header-height:64px;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;background:var(--landing-bg);color:var(--landing-text);min-height:100svh;padding-top:var(--landing-header-height);overflow:clip}.landing a{color:inherit;text-decoration:none}.landing button{font:inherit;cursor:pointer}.landing a:focus-visible,.landing button:focus-visible{outline-offset:5px;outline:2px solid #83d6ff}.landing-skip{z-index:90;background:#113a71;border-radius:6px;padding:12px 18px;position:fixed;top:-60px;left:20px}.landing-skip:focus{top:10px}.landing-header{z-index:60;height:var(--landing-header-height);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#101828ef;border-bottom:1px solid #b5d6ff1c;position:fixed;inset:0 0 auto}.landing-header-inner{grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:32px;max-width:1360px;height:100%;margin:auto;padding:0 48px;display:grid}.landing-brand{flex-shrink:0;justify-self:start;display:flex}.landing .brand-logo{mix-blend-mode:screen;gap:5px;width:118px;height:40px}.landing .brand-symbol{width:45px;height:38px}.landing .brand-wordmark{width:67px;height:28px}.landing-header nav{white-space:nowrap;justify-self:center;align-items:center;gap:32px;font-size:14px;display:flex}.landing-header-actions{justify-self:end;align-items:center;gap:24px;display:flex}.landing .landing-login{color:#c8d2e1;white-space:nowrap;align-items:center;min-height:44px;font-size:14px;transition:color .18s;display:inline-flex}.landing .landing-login:hover{color:#fff}.landing-header nav a{color:#c8d2e1;padding:12px 0;transition:color .18s;position:relative}.landing-header nav a:after{content:"";background:#52b7ff;height:1px;transition:transform .18s;position:absolute;bottom:4px;left:0;right:0;transform:scaleX(0)}.landing-header nav a:hover{color:#fff}.landing-header nav a:hover:after{transform:scaleX(1)}.landing-menu-toggle{display:none}.landing-hero{isolation:isolate;min-height:calc(100svh - var(--landing-header-height));scroll-margin-top:var(--landing-header-height);position:relative}.landing-atmosphere{z-index:-1;pointer-events:none;position:absolute;inset:0;overflow:hidden}.landing-atmosphere:before{content:"";background:radial-gradient(35% 50% at 2% 28%,#12416c24,#0000),radial-gradient(35% 55% at 98% 35%,#1b4f762c,#0000);position:absolute;inset:0}.landing-light-tunnel{opacity:.74;mix-blend-mode:screen;position:absolute;inset:-8% 0 4%;-webkit-mask-image:radial-gradient(39% 45% at 50% 31%,#0002 20%,#0008 58%,#000 100%);mask-image:radial-gradient(39% 45% at 50% 31%,#0002 20%,#0008 58%,#000 100%)}.landing-earth-scene{width:var(--earth-scene-width);aspect-ratio:1672/941;left:50%;top:calc(var(--earth-horizon) - var(--earth-scene-width) * .2026);position:absolute;transform:translate(-50%)}.landing-earth{filter:brightness(.82)saturate(.9);background:url(/brand/gopai-earth-centered-dark-v1.png) 50%/100% 100% no-repeat;position:absolute;inset:0;-webkit-mask-image:linear-gradient(#0000,#000 28%);mask-image:linear-gradient(#0000,#000 28%)}.landing-atmosphere:after{content:"";background:linear-gradient(#0000 70%,#02061099 91%,#020610);position:absolute;inset:0}.landing-hero-inner{max-width:1320px;min-height:inherit;justify-content:center;align-items:flex-start;margin:auto;padding:clamp(30px,5svh,64px) 36px 210px;display:flex;position:relative}.landing-copy{text-align:center;width:100%;max-width:1180px;position:relative}.landing-copy h1{letter-spacing:-.025em;color:#f4f7fe;text-shadow:0 3px 40px #02061080;margin:0 0 22px;font-family:GOPAI Display,PingFang SC,sans-serif;font-size:clamp(34px,3.45vw,50px);font-weight:450;line-height:1.32}.landing-headline-line{display:block}.landing-title-ai{color:#8ecaff;letter-spacing:-.045em;margin-right:.1em;font-weight:650}.rb-blur-text,.rb-blur-letter,.rb-shiny-text{display:inline-block}.landing-headline-focus{letter-spacing:-.015em;margin-top:4px;font-size:1.15em;font-weight:650;animation:.9s cubic-bezier(.2,.65,.25,1) .18s backwards landing-title-focus}@keyframes landing-title-focus{0%{opacity:0;filter:blur(9px);transform:translateY(18px)}to{opacity:1;filter:blur();transform:translateY(0)}}.landing-copy h2{color:#d1ddf5;letter-spacing:.18em;margin:0 0 20px;font-family:GOPAI Display,PingFang SC,sans-serif;font-size:clamp(16px,1.4vw,19px);font-weight:400}.landing-introduction{max-width:1180px;margin:0 auto}.landing-introduction p{color:var(--landing-muted);text-wrap:pretty;margin:0;font-size:clamp(12px,.94vw,14px);line-height:1.85}.landing-introduction p+p{margin-top:5px}.landing-introduction strong{color:#8ecaff;font-weight:500}.landing-actions{justify-content:center;align-items:center;gap:28px;margin-top:28px;display:flex}.landing .landing-glass{background:#4297ff15;border:1px solid #cadfff4a;flex-shrink:0;transition:box-shadow .22s,transform .22s,background .22s}.landing .landing-glass:hover{background:#4297ff28;transform:translateY(-2px);box-shadow:0 0 30px #308bff20,inset 0 1px 1px #fff6}.landing .landing-glass:active{transform:translateY(0)}.landing-glass .glass-surface__content{padding:0}.landing-glass:focus-within{outline-offset:5px;outline:2px solid #83d6ff}.landing .landing-glass button:focus-visible{outline:none}.landing .landing-start,.landing .landing-primary{border-radius:inherit;color:#fff;background:0 0;border:0;justify-content:center;align-items:center;width:100%;height:100%;display:flex}.landing .landing-start{gap:9px;min-width:112px;padding:0 16px;font-size:12px;font-weight:500}.landing .landing-hero-glass{min-width:166px}.landing .landing-primary{gap:17px;min-height:48px;padding:0 24px;font-size:16px;font-weight:550}.landing-glass button svg{transition:transform .22s}.landing-glass button:hover svg{transform:translate(4px)}.landing .landing-demo{white-space:nowrap;color:#c5cfdd;background:0 0;border:0;align-items:center;gap:10px;padding:10px 0;font-size:14px;transition:color .18s;display:inline-flex}.landing-demo:hover{color:#fff}.landing-play{border:1px solid #bedbff3b;border-radius:50%;place-items:center;width:32px;height:32px;transition:background .18s,border-color .18s;display:grid}.landing-demo:hover .landing-play{background:#06f2;border-color:#8abaff}.landing-footer{border-top:1px solid var(--landing-border);background:#020610;position:static}.landing-footer-inner{align-items:center;gap:25px;max-width:1360px;min-height:64px;margin:auto;padding:12px 48px;display:flex}.landing-footer .brand-logo{width:98px;height:34px}.landing-footer .brand-symbol{width:36px;height:30px}.landing-footer .brand-wordmark{width:56px;height:24px}.landing-footer-inner>span:not(.brand-logo){color:#92a4ba;letter-spacing:1px;font-size:11px}.landing-footer small{letter-spacing:2px;color:#7890aa;margin-left:auto;font-size:8px}@media (min-width:960px){.landing-introduction p{white-space:nowrap}}@media (min-width:761px) and (max-height:720px){.landing-hero-inner{padding-top:26px;padding-bottom:180px}.landing .landing-copy h1{margin-bottom:12px;font-size:36px}.landing-copy h2{margin-bottom:15px}}@media (max-width:1150px){.landing-header-inner{gap:25px;padding-left:32px;padding-right:32px}.landing-header nav{gap:24px}.landing-copy h1{font-size:clamp(33px,3.65vw,42px)}}@media (max-width:760px){.landing{--landing-header-height:60px;--earth-horizon:max(435px, 55svh);--earth-scene-width:max(100vw, 760px)}.landing-header-inner{gap:18px;padding:0 22px;display:flex}.landing-header-actions{gap:16px;margin-left:auto}.landing-header nav{border-bottom:1px solid var(--landing-border);background:#101828;justify-self:stretch;width:100%;margin:0;padding:12px 24px 22px;display:none;position:absolute;top:59px;left:0;right:0}.landing-header nav.is-open{grid-template-columns:repeat(2,1fr);gap:0 20px;display:grid}.landing-header nav a{padding:15px 0}.landing .landing-start{min-width:102px;padding:0 12px;font-size:12px}.landing .landing-menu-toggle{background:0 0;border:0;flex-direction:column;justify-content:center;gap:6px;width:26px;height:36px;padding:3px;display:flex}.landing-menu-toggle span{background:#c5d4e7;width:20px;height:1px;transition:transform .18s}.landing-menu-toggle[aria-expanded=true] span:first-child{transform:translateY(3.5px)rotate(45deg)}.landing-menu-toggle[aria-expanded=true] span:last-child{transform:translateY(-3.5px)rotate(-45deg)}.landing-hero{min-height:calc(100svh - var(--landing-header-height))}.landing-hero-inner{padding:40px 28px 220px}.landing-copy h1{margin-bottom:15px;font-size:clamp(27px,6.1vw,38px);line-height:1.35}.landing-copy h2{letter-spacing:.1em;margin-bottom:18px;font-size:16px}.landing-introduction{max-width:480px}.landing-introduction p{font-size:12px;line-height:1.85}.landing-light-tunnel{opacity:.52;inset:-8% -20% 4%;-webkit-mask-image:radial-gradient(55% 40% at 50% 31%,#0001 28%,#0006 70%,#000 100%);mask-image:radial-gradient(55% 40% at 50% 31%,#0001 28%,#0006 70%,#000 100%)}.landing-footer-inner{flex-wrap:wrap;gap:14px;padding:15px 24px}.landing-footer small{flex-basis:100%;margin:0;font-size:8px}}@media (max-width:420px){.landing-header-inner{gap:8px;padding:0 16px}.landing-header-actions{gap:10px}.landing .landing-start{min-width:92px;padding:0 10px}.landing-header .brand-logo{width:98px}.landing-header .brand-symbol{width:36px}.landing-header .brand-wordmark{width:57px}.landing-hero-inner{padding:36px 22px 205px}.landing-copy h1{font-size:clamp(22px,6.75vw,27px)}.landing-copy h2{font-size:16px}.landing-introduction p{font-size:12px}.landing-actions{gap:18px;margin-top:24px}.landing .landing-hero-glass{min-width:154px}.landing .landing-primary{padding:0 20px;font-size:16px}.landing .landing-demo{gap:8px;font-size:12px}.landing-play{flex-shrink:0;width:30px;height:30px}}@media (prefers-reduced-motion:reduce){.landing *,.landing :before,.landing :after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
