:root{color-scheme:dark;--bg:#090b0c;--text:#f0f2ef;--muted:#9ca3a3;--accent:#c3d4c6;--line:#2b3031;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}a{color:inherit}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible{outline:2px solid var(--accent);outline-offset:7px}::selection{background:var(--accent);color:var(--bg)}
.page-shell{max-width:1600px;margin:0 auto;padding:0 6%;min-height:100svh;display:flex;flex-direction:column}.site-header{display:flex;justify-content:space-between;align-items:center;padding:30px 0 24px;border-bottom:1px solid var(--line)}.brand{display:inline-flex}.brand img{width:172px;height:auto}.launch-label,.eyebrow,.coordinate,.art-caption,.signature-strip{font-family:"Courier New",monospace;font-size:.75rem;letter-spacing:.15em}.launch-label{display:flex;align-items:center;gap:12px;color:var(--accent);font-size:.8125rem}.little-line{width:24px;height:1px;background:var(--accent)}
main{flex:1;display:flex;flex-direction:column}.hero{display:grid;grid-template-columns:1.13fr 1fr;align-items:center;gap:24px;min-height:660px;flex:1;padding:65px 0 68px}.hero-copy{position:relative;z-index:1}.eyebrow{margin:0 0 26px;color:var(--accent);line-height:1.6}h1{font-size:clamp(3.25rem,5.6vw,5.7rem);line-height:1.025;letter-spacing:-.065em;font-weight:600;margin:0 0 30px}h1 span{color:#8d9996}.intro{font-size:1.0625rem;line-height:1.75;color:#adb3b2;margin:0 0 30px}.cta{display:inline-flex;align-items:center;justify-content:space-between;gap:36px;min-height:56px;padding:17px 23px;background:var(--text);border:1px solid var(--text);color:#101514;font-size:.9375rem;font-weight:600;text-decoration:none;transition:background .2s,transform .2s}.cta:hover{background:var(--accent);border-color:var(--accent);transform:translateY(-2px)}.cta span{font-size:1.3rem;font-weight:400}.cta-note{font-size:.8125rem;color:var(--muted);margin:15px 0 0}
.hero-art{position:relative;aspect-ratio:1;width:100%;max-width:570px;justify-self:end;display:grid;place-items:center;background:radial-gradient(ellipse at center,rgba(159,185,171,.055),transparent 68%)}.quantum-mark{width:71%;height:auto;opacity:.8;filter:drop-shadow(0 12px 22px #000);transform:rotate(-9deg);animation:arrive 1.1s ease-out both}.orbit{position:absolute;border:1px solid #333b3b;border-radius:50%;pointer-events:none}.orbit-outer{inset:3%;transform:rotate(-32deg) scaleY(.81);border-color:#293132}.orbit-inner{inset:12%;transform:rotate(37deg) scaleY(.9);border-color:#3a4544}.coordinate{position:absolute;color:#7f8f8b;top:9%;left:17%}.art-caption{position:absolute;bottom:6%;right:10%;color:#899491;font-size:.75rem;letter-spacing:.13em}.suit{position:absolute;font-size:1.75rem;color:#8d9e97}.suit-spade{top:19%;right:9%;transform:rotate(14deg)}.suit-diamond{bottom:20%;left:9%;font-size:1.25rem;opacity:.65}.cross{position:absolute;color:#768580;font:1.2rem "Courier New",monospace}.cross-one{top:2%;right:37%}.cross-two{bottom:10%;right:18%}
.signature-strip{display:flex;justify-content:space-between;align-items:center;gap:20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0;color:#a5adaa;font-size:.75rem;letter-spacing:.15em}.suits{font-family:Georgia,serif;font-size:1.2rem;word-spacing:13px;letter-spacing:0;color:#94a29c}.suits i{font-style:normal;color:#646f6b}.site-footer{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:30px 0 32px;color:var(--muted);font-size:.75rem;line-height:1.7}.site-footer p{margin:0}.site-footer nav{display:flex;gap:28px}.site-footer a{text-decoration:none;min-height:32px;display:inline-flex;align-items:center;gap:8px}.site-footer a:hover{color:var(--text);text-decoration:underline;text-underline-offset:5px}.mobile-break{display:none}.skip-link{position:absolute;left:20px;top:-100px;z-index:5;background:var(--text);color:var(--bg);padding:16px}.skip-link:focus{top:12px}
.privacy{max-width:760px;padding:64px 0 80px}.privacy h1{font-size:clamp(2.5rem,5vw,4rem);letter-spacing:-.045em}.privacy h2{font-size:1.2rem;margin:32px 0 10px}.privacy p{font-size:1rem;line-height:1.8;color:#b9c0bd}.privacy .back{display:inline-block;margin-top:24px;text-underline-offset:6px}
@keyframes arrive{from{opacity:0;transform:translateY(8px) rotate(-7deg)}to{opacity:.8;transform:translateY(0) rotate(-9deg)}}
@media(min-width:1600px){.hero{min-height:720px}}
@media(max-width:1000px){.page-shell{padding:0 5%}.hero{gap:0;min-height:610px}h1{font-size:clamp(3rem,6.3vw,4.5rem)}.intro{font-size:1rem}.desktop-break{display:none}.art-caption{font-size:.75rem;right:0}.signature-strip{letter-spacing:.08em}}
@media(max-width:680px){.page-shell{padding:0 24px}.site-header{padding:24px 0 20px}.brand img{width:136px}.launch-label{font-size:.75rem;gap:8px;letter-spacing:.09em}.little-line{width:15px}.hero{grid-template-columns:1fr;gap:25px;padding:48px 0 32px;min-height:auto}.eyebrow{font-size:.75rem;letter-spacing:.1em;margin-bottom:24px}h1{font-size:clamp(2.9rem,10.5vw,4.5rem);margin-bottom:24px}.intro{max-width:380px;line-height:1.7}.cta{min-height:56px}.hero-art{width:78%;max-width:330px;justify-self:center}.art-caption{font-size:.75rem;right:3%;bottom:2%}.signature-strip{padding:19px 0;gap:12px;flex-wrap:wrap;font-size:.75rem}.signature-strip>span:last-child{display:none}.suits{font-size:1rem;word-spacing:8px}.site-footer{align-items:flex-start;flex-direction:column;gap:16px;padding:24px 0;font-size:.75rem}.site-footer nav{gap:25px}.mobile-break{display:block}.privacy{padding-top:46px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Language controls remain usable with long translations and narrow screens. */
.header-tools{display:flex;align-items:center;justify-content:flex-end;gap:24px;flex-wrap:wrap}
.language-control{position:relative;z-index:5}.language-control[hidden]{display:none}
.language-control button{display:flex;align-items:center;gap:6px;min-height:40px;padding:7px 9px;border:1px solid transparent;border-radius:3px;background:transparent;color:var(--muted);font:inherit;font-size:.8125rem;cursor:pointer}
.language-control button img{display:block;object-fit:cover;border-radius:1px}
.language-control button[aria-pressed="true"]{border-color:#75867f;color:var(--text);background:#202825}
.language-control button:hover{background:#202825;color:var(--text)}
.language-control button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.language-control summary{display:flex;align-items:center;gap:8px;min-height:44px;padding:8px 12px;border:1px solid #58655f;border-radius:3px;color:var(--text);font-size:.875rem;cursor:pointer;list-style:none}
.language-control summary::-webkit-details-marker{display:none}
.language-control summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.language-control summary img{display:block;border-radius:1px}
.language-chevron{margin-left:8px;transition:transform .15s}.language-control[open] .language-chevron{transform:rotate(180deg)}
.language-options{position:absolute;right:0;top:calc(100% + 8px);width:190px;max-width:calc(100vw - 48px);padding:6px;display:flex;flex-direction:column;gap:3px;background:#131917;border:1px solid #435049;border-radius:4px;box-shadow:0 12px 30px #0009}
.language-options button{width:100%;min-height:44px;text-align:left;gap:12px;font-size:.875rem}
.language-control:not([open]) .language-options{display:none}
.hero-copy{min-width:0}.cta{max-width:100%;line-height:1.5}.cta .cta-text{font:inherit}.cta>span[aria-hidden]{flex-shrink:0}
h1 .headline-line{color:var(--text)}
:lang(zh-Hans){font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif}
html:lang(zh-Hans) h1{letter-spacing:0;line-height:1.2}
@media(max-width:1000px){.site-header{gap:20px;flex-wrap:wrap}.header-tools{gap:16px}}
@media(max-width:680px){.header-tools{flex:1;gap:12px}.language-control{justify-content:flex-end;flex-wrap:wrap}.language-control button{min-height:44px;padding:7px 8px}.site-header .brand{align-self:flex-start}.cta{gap:16px;padding:15px 18px}.art-caption{max-width:100%;text-align:center;right:0;left:0;bottom:-4%;line-height:1.6}.hero{row-gap:36px}html:lang(es) h1{font-size:clamp(2.25rem,8vw,4rem)}}