:root{--paper:#f2efe7;--ink:#151816;--blue:#123ee8;--orange:#ff5b35;--line:rgba(21,24,22,.16);--muted:#666962;--serif:"Songti SC","STSong","Noto Serif CJK SC",serif;--sans:Inter,"PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);overflow-x:hidden}a{color:inherit;text-decoration:none}button{font:inherit}.reading-line{position:fixed;left:0;top:0;z-index:100;width:0;height:3px;background:var(--orange)}.topbar{position:sticky;top:0;z-index:40;height:82px;padding:0 4.5vw;display:flex;align-items:center;border-bottom:1px solid var(--line);background:rgba(242,239,231,.88);backdrop-filter:blur(16px)}.brand{display:flex;width:130px}.brand img{width:108px;height:auto}.desktop-nav{display:flex;margin:auto;gap:32px;font-size:13px}.desktop-nav a{position:relative}.desktop-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:-8px;height:1px;background:var(--ink);transition:.35s}.desktop-nav a:hover:after{right:0}.mini-download{font-size:12px;text-transform:uppercase;border-bottom:1px solid;padding:6px 0}.menu-toggle{display:none;margin-left:auto;border:0;background:transparent;width:40px;height:40px}.menu-toggle span{display:block;width:24px;height:1px;background:var(--ink);margin:7px}.hero{min-height:calc(100vh - 82px);padding:6.5vw 4.5vw 3vw;display:grid;grid-template-columns:1.02fr .98fr;gap:6vw;align-items:center;position:relative;border-bottom:1px solid var(--line)}.eyebrow,.section-tag{display:flex;justify-content:space-between;align-items:center;font-size:11px;letter-spacing:.2em;text-transform:uppercase;border-top:1px solid var(--ink);padding-top:10px;max-width:480px}.eyebrow b{font-weight:500}.hero h1{font-family:var(--serif);font-size:clamp(48px,6.3vw,104px);line-height:.98;letter-spacing:-.065em;font-weight:500;margin:35px 0 30px}.hero h1 em{font-style:normal;color:var(--blue);position:relative}.hero h1 em:after{content:"";position:absolute;left:3%;right:0;bottom:0;height:8px;border-radius:50%;background:var(--orange);transform:rotate(-2deg)}.lead{max-width:620px;font-size:17px;line-height:1.9;color:#4f534d}.hero-actions{display:flex;align-items:center;gap:28px;margin-top:38px}.primary{display:inline-flex;align-items:center;justify-content:space-between;gap:28px;min-width:240px;background:var(--blue);color:#fff;padding:18px 20px;border:1px solid var(--blue);transition:.35s}.primary:hover{background:var(--orange);border-color:var(--orange);transform:translateY(-3px)}.primary i{font-style:normal;font-size:20px}.text-link{font-size:14px;border-bottom:1px solid;padding:12px 0}.text-link span{margin-left:16px}.download-note{font-size:11px;color:#777a74;margin-top:16px}.observatory{aspect-ratio:1;position:relative;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;max-width:680px;margin:auto;isolation:isolate}.observatory:before,.observatory:after{content:"";position:absolute;inset:14%;border:1px solid var(--line);border-radius:50%}.observatory:after{inset:29%}.orbit{position:absolute;inset:5%;animation:spin 35s linear infinite}.orbit span{position:absolute;display:grid;place-items:center;width:52px;height:52px;border-radius:50%;background:var(--ink);color:var(--paper);font-size:11px}.orbit span:nth-child(1){left:50%;top:-26px}.orbit span:nth-child(2){right:2%;bottom:18%}.orbit span:nth-child(3){left:5%;bottom:15%}.orbit-b{inset:19%;animation-direction:reverse;animation-duration:26s}.orbit-b span{background:var(--orange)}.translation-core{position:relative;z-index:2;width:48%;min-width:220px;text-align:center;background:var(--paper);padding:30px 18px}.translation-core small{font-size:10px;letter-spacing:.24em;color:var(--blue)}.translation-core p{font-family:Georgia,serif;font-size:20px;line-height:1.4;margin:16px 0}.translation-core strong{display:block;font-family:var(--serif);font-size:18px;margin-top:15px}.signal{height:18px;display:flex;align-items:center;justify-content:center;gap:4px}.signal b{width:2px;height:6px;background:var(--blue);animation:pulse 1.1s ease-in-out infinite}.signal b:nth-child(2),.signal b:nth-child(4){animation-delay:.2s}.signal b:nth-child(3){animation-delay:.4s}.orbit-caption{position:absolute;bottom:2%;right:1%;background:var(--orange);color:#fff;padding:16px 18px;display:flex;gap:12px;align-items:center;transform:rotate(-3deg)}.orbit-caption b{font-family:var(--serif);font-size:28px}.orbit-caption span{font-size:9px;line-height:1.5}.hero-index{position:absolute;left:4.5vw;bottom:20px;font-size:9px;line-height:1.5;letter-spacing:.14em;text-transform:uppercase}.hero-index strong{font-weight:500}.manifesto,.capabilities,.use-cases,.faq{padding:120px 4.5vw}.section-tag{max-width:none;justify-content:flex-start;color:var(--muted);border-color:var(--line)}.manifesto-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:9vw;margin-top:48px}.manifesto h2,.cap-head h2,.use-cases h2,.faq h2{font-family:var(--serif);font-weight:500;font-size:clamp(36px,4.4vw,68px);line-height:1.16;letter-spacing:-.04em;margin:0}.manifesto-copy{font-size:16px;line-height:2;color:#555951}.manifesto-copy p{margin:0 0 22px}.thought-strip{display:grid;grid-template-columns:repeat(3,1fr);margin-top:80px;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}.thought-strip article{padding:30px 30px 36px 0}.thought-strip article+article{border-left:1px solid var(--line);padding-left:30px}.thought-strip span{font-size:10px;color:var(--blue)}.thought-strip h3{font-family:var(--serif);font-size:26px;font-weight:500;margin:30px 0 10px}.thought-strip p{font-size:13px;line-height:1.8;color:var(--muted);max-width:320px}.capabilities{background:var(--ink);color:var(--paper)}.cap-head{display:grid;grid-template-columns:.35fr 1fr;gap:5vw;align-items:start}.cap-head .section-tag{border-color:rgba(255,255,255,.25);color:#b9bab4}.cap-layout{display:grid;grid-template-columns:.42fr .58fr;gap:7vw;margin-top:90px}.cap-tabs{border-top:1px solid rgba(255,255,255,.25)}.cap-tab{width:100%;display:grid;grid-template-columns:52px 1fr;text-align:left;align-items:center;color:#92958e;background:none;border:0;border-bottom:1px solid rgba(255,255,255,.2);padding:20px 4px;cursor:pointer;transition:.3s}.cap-tab b{font-size:10px}.cap-tab span{font-family:var(--serif);font-size:24px}.cap-tab.active,.cap-tab:hover{color:#fff;padding-left:15px}.cap-stage{min-height:410px;position:relative;background:var(--blue);padding:55px}.cap-stage:before{content:"";position:absolute;width:140px;height:140px;border:1px solid rgba(255,255,255,.25);border-radius:50%;right:35px;top:30px}.cap-panel{display:none;position:relative;z-index:2}.cap-panel.active{display:block;animation:panelIn .45s ease}.panel-number{font-size:10px;letter-spacing:.2em;color:#b9c4ff}.cap-panel h3{font-family:var(--serif);font-size:42px;font-weight:500;margin:75px 0 20px}.cap-panel p{font-size:15px;line-height:2;color:#e5e9ff;max-width:650px}.cap-panel ul{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:32px 0 0}.cap-panel li{border:1px solid rgba(255,255,255,.35);padding:9px 12px;font-size:11px}.use-cases{display:grid;grid-template-columns:.36fr .64fr;gap:8vw}.use-cases .case-intro span{font-size:10px;letter-spacing:.22em;color:var(--orange)}.use-cases h2{font-size:clamp(34px,3.6vw,54px);margin-top:26px}.case{padding:34px 0;border-top:1px solid var(--ink);display:grid;grid-template-columns:120px 1fr 1fr;gap:30px;align-items:start}.case:last-child{border-bottom:1px solid var(--ink)}.case b{font-size:11px;color:var(--blue)}.case h3{font-family:var(--serif);font-weight:500;font-size:24px;margin:0}.case p{font-size:13px;line-height:1.8;color:var(--muted);margin:0}.case span{grid-column:2/4;font-size:10px;letter-spacing:.2em;color:var(--orange)}.safety{padding:110px 10vw;display:grid;grid-template-columns:.35fr .65fr;gap:9vw;background:var(--orange);color:white}.safety-seal{aspect-ratio:1;border:1px solid rgba(255,255,255,.5);border-radius:50%;display:grid;place-items:center;align-content:center;text-align:center;position:relative;max-width:300px}.safety-seal:before{content:"";position:absolute;inset:15px;border:1px dashed rgba(255,255,255,.5);border-radius:50%;animation:spin 18s linear infinite}.safety-seal span{font-size:10px;letter-spacing:.2em;line-height:1.7}.safety-seal b{font-family:var(--serif);font-size:70px;font-weight:400}.safety-copy .section-tag{border-color:rgba(255,255,255,.5);color:#fff}.safety-copy h2{font-family:var(--serif);font-size:clamp(38px,4vw,60px);font-weight:500;margin:35px 0 20px}.safety-copy>p{font-size:15px;line-height:2;max-width:780px}.safety-points{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0}.safety-points span{border:1px solid rgba(255,255,255,.55);padding:9px 12px;font-size:11px}.primary.dark{background:var(--ink);border-color:var(--ink);margin-top:10px}.primary.dark:hover{background:var(--blue);border-color:var(--blue)}.faq{display:grid;grid-template-columns:.42fr .58fr;gap:9vw}.faq-title h2{margin-top:35px;font-size:clamp(34px,3.8vw,58px)}.faq-list{border-top:1px solid var(--ink)}details{border-bottom:1px solid var(--ink)}summary{list-style:none;cursor:pointer;padding:25px 0;display:flex;justify-content:space-between;gap:20px;font-family:var(--serif);font-size:20px}summary::-webkit-details-marker{display:none}summary i{font:300 24px var(--sans);transition:.3s}details[open] summary i{transform:rotate(45deg)}details p{font-size:14px;line-height:1.9;color:var(--muted);margin:0;padding:0 50px 25px 0}.closing{background:var(--blue);color:#fff;text-align:center;padding:110px 5vw}.closing p{font-size:11px;letter-spacing:.2em}.closing h2{font:500 clamp(42px,6vw,88px)/1.05 var(--serif);letter-spacing:-.05em;margin:35px auto}.closing a{display:inline-flex;gap:80px;border-bottom:1px solid;padding:15px 0}.closing a span{font-size:22px}footer{background:#0f120f;color:#fff;min-height:110px;padding:25px 4.5vw;display:flex;align-items:center;gap:40px}footer img{filter:none}footer p{font-size:11px;color:#8f928c;margin:auto}footer a{font-size:11px}.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}.reveal.visible{opacity:1;transform:none}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{50%{height:17px}}@keyframes panelIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@media(max-width:900px){.topbar{height:68px;padding:0 22px}.desktop-nav,.mini-download{display:none}.menu-toggle{display:block}.topbar.open .desktop-nav{display:flex;position:absolute;left:0;right:0;top:68px;background:var(--paper);border-bottom:1px solid var(--ink);padding:24px;flex-direction:column;gap:20px}.hero{grid-template-columns:1fr;padding:70px 22px 45px;gap:55px}.hero h1{font-size:clamp(52px,16vw,80px)}.observatory{width:min(100%,520px)}.hero-index{display:none}.manifesto,.capabilities,.use-cases,.faq{padding:80px 22px}.manifesto-grid,.cap-head,.cap-layout,.use-cases,.faq{grid-template-columns:1fr}.manifesto-grid,.cap-layout,.use-cases,.faq{gap:48px}.thought-strip{grid-template-columns:1fr}.thought-strip article+article{border-left:0;border-top:1px solid var(--line);padding-left:0}.cap-stage{padding:35px 26px;min-height:440px}.cap-panel h3{font-size:34px}.case{grid-template-columns:80px 1fr}.case p{grid-column:2}.case span{grid-column:2}.safety{padding:80px 22px;grid-template-columns:1fr}.safety-seal{max-width:230px}.closing{padding:80px 22px}.closing a{gap:35px}footer{align-items:flex-start;flex-direction:column;gap:16px}footer p{margin:0}.hero-actions{align-items:flex-start;flex-direction:column}.primary{width:100%}}
@media(max-width:520px){.hero{min-height:auto}.observatory{aspect-ratio:1}.translation-core{min-width:170px;padding:18px 8px}.translation-core p{font-size:15px}.orbit span{width:38px;height:38px}.orbit-caption{right:-4%;bottom:-2%}.case{grid-template-columns:1fr}.case p,.case span{grid-column:1}.safety-points{flex-direction:column}.cap-tab span{font-size:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.orbit,.safety-seal:before,.signal b{animation:none}.reveal{opacity:1;transform:none;transition:none}}
@media(max-width:900px){.hero-copy{min-width:0;max-width:100%}.hero h1{max-width:100%;font-size:clamp(38px,10.5vw,46px);overflow-wrap:anywhere;word-break:break-all}.lead{max-width:100%;overflow-wrap:anywhere}}
@media(max-width:900px){.hero,.hero-copy{width:100%;overflow:hidden}.observatory{max-width:calc(100vw - 44px)}}
@media(max-width:900px){.hero-copy{width:calc(100vw - 44px);max-width:calc(100vw - 44px)}.hero-copy>*{max-width:100%}.hero-copy .primary{width:100%}}
@media(max-width:900px){.hero{grid-template-columns:minmax(0,1fr)}.hero-copy{width:auto;max-width:100%;min-inline-size:0}.hero-copy>*{max-width:100%}}

/* Refined brand lockup */
.brand{width:auto;min-width:142px;height:54px;padding:6px 13px;align-items:center;justify-content:center;border:1px solid rgba(21,24,22,.11);border-radius:16px;background:rgba(255,255,255,.58);box-shadow:0 8px 24px rgba(21,24,22,.055);backdrop-filter:blur(10px);transition:transform .3s ease,box-shadow .3s ease,background .3s ease}
.brand img{display:block;width:116px;height:auto;max-height:42px;object-fit:contain}
.brand:hover{transform:translateY(-2px);background:rgba(255,255,255,.86);box-shadow:0 12px 30px rgba(21,24,22,.09)}
footer img{width:116px;height:auto;max-height:46px;object-fit:contain;background:rgba(255,255,255,.96);border-radius:12px;padding:7px 11px}
@media(max-width:900px){.brand{min-width:126px;height:48px;padding:5px 10px;border-radius:14px}.brand img{width:104px}.topbar{gap:12px}}

/* Footer brand: the official light lockup belongs on a dark surface */
footer .footer-brand{position:relative;display:inline-flex;align-items:center;justify-content:center;min-width:154px;height:62px;padding:9px 15px 9px 22px;border:1px solid rgba(255,255,255,.15);border-radius:18px;background:linear-gradient(135deg,rgba(255,255,255,.09),rgba(255,255,255,.025));box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 12px 28px rgba(0,0,0,.18);overflow:hidden;transition:transform .3s ease,border-color .3s ease,background .3s ease}
footer .footer-brand:before{content:"";position:absolute;left:10px;width:5px;height:26px;border-radius:5px;background:var(--orange);box-shadow:0 0 16px rgba(255,91,53,.5)}
footer .footer-brand img{display:block;width:116px;height:auto;max-height:44px;padding:0;border:0;border-radius:0;background:transparent;object-fit:contain;filter:drop-shadow(0 5px 10px rgba(0,0,0,.16))}
footer .footer-brand:hover{transform:translateY(-3px);border-color:rgba(255,255,255,.3);background:rgba(255,255,255,.11)}
@media(max-width:900px){footer .footer-brand{min-width:146px;height:58px}}
