:root{--bg:#f5f5f7;--surface:#fff;--surface-soft:rgba(255,255,255,.72);--text:#1d1d1f;--muted:#6e6e73;--subtle:#86868b;--line:rgba(0,0,0,.09);--accent:#0071e3;--accent-soft:#e8f2ff;--green:#34c759;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,'SF Pro Display','SF Pro Text','Noto Sans SC','Helvetica Neue',Arial,sans-serif;line-height:1.55;overflow-x:hidden;-webkit-font-smoothing:antialiased}.ambient,.grid-bg,.noise{position:fixed;inset:0;pointer-events:none}.ambient{z-index:-3;border-radius:50%;filter:blur(90px)}.ambient-a{width:560px;height:560px;left:-240px;top:-260px;background:rgba(0,113,227,.10)}.ambient-b{width:620px;height:620px;right:-280px;top:8%;background:rgba(52,199,89,.07)}.grid-bg{z-index:-2;opacity:.22;background-image:linear-gradient(rgba(0,0,0,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,.025) 1px,transparent 1px);background-size:72px 72px;mask-image:linear-gradient(to bottom,black,transparent 72%)}.noise{z-index:20;opacity:.018;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E")}.nav{height:64px;display:flex;align-items:center;justify-content:space-between;max-width:var(--max);margin:auto;padding:0 28px;position:relative;z-index:30}.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:600;font-size:18px;text-decoration:none;letter-spacing:-.03em}.brand-mark{width:25px;height:25px;position:relative;display:inline-block}.brand-mark i{position:absolute;width:14px;height:14px;border:2px solid var(--accent);border-radius:50%}.brand-mark i:first-child{left:0;top:1px}.brand-mark i:last-child{right:0;bottom:1px;border-color:#5ac8fa;background:var(--bg)}.nav-links{display:flex;gap:30px;margin-left:auto;margin-right:22px}.nav-links a{color:#424245;text-decoration:none;font-size:12px;transition:.25s}.nav-links a:hover{color:var(--accent)}.lang-switch{border:1px solid rgba(0,0,0,.12);background:rgba(255,255,255,.65);color:#424245;border-radius:999px;padding:7px 12px;font:600 11px -apple-system,BlinkMacSystemFont,'Noto Sans SC',sans-serif;cursor:pointer;transition:.25s;box-shadow:0 2px 12px rgba(0,0,0,.04);backdrop-filter:blur(18px)}.lang-switch:hover{border-color:rgba(0,113,227,.35);box-shadow:0 5px 20px rgba(0,0,0,.08)}.lang-switch .lang-cn{color:var(--accent)}.lang-switch .slash{opacity:.3;margin:0 4px}.lang-switch .lang-en{opacity:.55}.hero{min-height:calc(100vh - 64px);max-width:var(--max);margin:auto;padding:95px 28px 90px;position:relative;overflow:hidden;display:flex;align-items:center}.hero-content{position:relative;z-index:5;width:57%;padding-bottom:35px}.eyebrow,.section-label{font-size:11px;letter-spacing:.16em;color:var(--subtle);font-weight:600}.eyebrow span{display:inline-block;width:7px;height:7px;background:var(--green);border-radius:50%;margin-right:8px;box-shadow:0 0 12px rgba(52,199,89,.35);animation:pulse 2s ease-in-out infinite}.hero h1{font-size:clamp(64px,8.6vw,112px);line-height:.93;letter-spacing:-.075em;margin:26px 0 28px;max-width:760px;font-weight:600}.hero h1 em,h2 em{font-style:normal;color:var(--accent)}.hero-copy{font-size:17px;color:var(--muted);line-height:1.75;max-width:560px;margin:0}.hero-actions{display:flex;gap:12px;margin-top:34px}.button{display:inline-flex;align-items:center;gap:17px;padding:13px 20px;border-radius:999px;text-decoration:none;font-size:13px;font-weight:600;transition:.3s}.button span{font-size:16px}.button.primary{background:#1d1d1f;color:#fff;box-shadow:0 8px 24px rgba(0,0,0,.12)}.button.primary:hover{transform:translateY(-3px);background:var(--accent);box-shadow:0 12px 30px rgba(0,113,227,.2)}.button.secondary{border:1px solid rgba(0,0,0,.13);color:var(--text);background:rgba(255,255,255,.62);backdrop-filter:blur(12px)}.button.secondary:hover{border-color:rgba(0,113,227,.35);transform:translateY(-3px);background:#fff}.hero-meta{display:flex;align-items:center;gap:12px;margin-top:52px;color:#86868b;font-size:8px;letter-spacing:.15em}.hero-meta i{width:3px;height:3px;border-radius:50%;background:#a1a1a6}.hero-visual{position:absolute;width:570px;height:570px;right:-25px;top:50%;transform:translateY(-50%);opacity:.95}.scroll-cue{position:absolute;bottom:22px;left:28px;display:flex;align-items:center;gap:10px;color:#86868b;font-size:8px;letter-spacing:.18em}.scroll-cue span{width:25px;height:1px;background:#a1a1a6}.section{max-width:var(--max);margin:auto;padding:135px 28px}.section-heading{display:grid;grid-template-columns:1fr 390px;gap:80px;align-items:end;margin-top:24px}.section-heading h2,.vision h2{font-size:clamp(44px,5.8vw,72px);line-height:1.04;letter-spacing:-.065em;margin:0;font-weight:600}.section-heading h2 span{color:#86868b}.section-heading p{color:var(--muted);font-size:14px;line-height:1.85;margin:0}.concept-grid{margin-top:68px;display:grid;grid-template-columns:1fr 70px 1fr;align-items:center}.concept-card{min-height:350px;padding:38px;border:1px solid rgba(0,0,0,.09);border-radius:24px;background:rgba(255,255,255,.72);box-shadow:0 15px 45px rgba(0,0,0,.045);position:relative;overflow:hidden;transition:.45s;backdrop-filter:blur(18px)}.concept-card:before{content:'';position:absolute;width:220px;height:220px;border-radius:50%;background:rgba(0,113,227,.055);filter:blur(35px);right:-100px;bottom:-100px}.concept-card:hover{transform:translateY(-8px);box-shadow:0 24px 55px rgba(0,0,0,.08);border-color:rgba(0,113,227,.2)}.twin-card{border-color:rgba(52,199,89,.18)}.twin-card:before{background:rgba(52,199,89,.05)}.card-number{position:absolute;right:27px;top:25px;color:#a1a1a6;font-size:9px}.card-icon{width:46px;height:46px;border-radius:13px;border:1px solid rgba(0,113,227,.18);background:var(--accent-soft);display:grid;place-items:center;margin-bottom:62px;font-weight:600;color:var(--accent)}.twin-card .card-icon{border-color:rgba(52,199,89,.2);background:rgba(52,199,89,.08);color:#248a3d}.concept-card h3{font-size:29px;margin:0 0 10px;letter-spacing:-.04em}.concept-card p{color:var(--muted);font-size:13px;max-width:400px;line-height:1.9}.arrow{text-align:center;color:#86868b;font-size:25px}.architecture{border-top:1px solid var(--line);max-width:none;padding-left:max(28px,calc((100vw - 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/* TwinsMem robot hero */
.hero-visual.robot-visual{width:610px;height:650px;right:-35px;top:50%;transform:translateY(-50%);opacity:.98}.robot-halo{position:absolute;width:480px;height:480px;left:65px;top:75px;border-radius:50%;background:radial-gradient(circle,rgba(0,113,227,.12),rgba(90,200,250,.04) 38%,transparent 68%);filter:blur(8px);animation:robotPulse 5s ease-in-out infinite}.robot-grid{position:absolute;inset:40px;background:linear-gradient(rgba(0,113,227,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(0,113,227,.06) 1px,transparent 1px);background-size:38px 38px;mask-image:radial-gradient(circle,black 0%,transparent 68%);opacity:.55}.robot{position:absolute;left:205px;top:95px;width:220px;height:470px;filter:drop-shadow(0 25px 45px rgba(0,60,130,.16));animation:robotFloat 5s ease-in-out infinite}.robot-head{position:absolute;left:28px;top:0;width:164px;height:150px;border:1px solid rgba(0,113,227,.28);border-radius:48px 48px 38px 38px;background:linear-gradient(145deg,rgba(255,255,255,.96),rgba(222,238,255,.76));box-shadow:inset 0 0 40px rgba(0,113,227,.08),0 20px 50px rgba(0,60,130,.12)}.robot-face{position:absolute;left:17px;top:28px;width:130px;height:92px;border-radius:34px;background:linear-gradient(160deg,#101820,#263b4b);box-shadow:inset 0 0 24px rgba(90,200,250,.18),0 0 28px rgba(0,113,227,.13)}.robot-eye{position:absolute;top:39px;width:28px;height:7px;border-radius:8px;background:#64d8ff;box-shadow:0 0 18px rgba(90,200,250,.9);animation:eyePulse 3s ease-in-out infinite}.robot-eye.left{left:25px}.robot-eye.right{right:25px}.robot-line{position:absolute;left:51px;bottom:20px;width:28px;height:2px;background:#6de1ff;box-shadow:0 0 10px #5ac8fa}.robot-ear{position:absolute;top:48px;width:16px;height:46px;border:2px solid #8ecbff;border-radius:9px;background:rgba(255,255,255,.65)}.robot-ear.left{left:-12px}.robot-ear.right{right:-12px}.robot-neck{position:absolute;left:91px;top:145px;width:38px;height:30px;background:linear-gradient(#d9e8f5,#9eb8cc);border:1px solid rgba(0,113,227,.2)}.robot-body{position:absolute;left:22px;top:165px;width:176px;height:250px;border-radius:60px 60px 34px 34px;background:linear-gradient(145deg,#fdfefe,#d7e5f1 58%,#a9c0d2);border:1px solid rgba(0,113,227,.24);box-shadow:inset 0 0 50px rgba(255,255,255,.65),0 20px 50px rgba(0,60,130,.13)}.robot-core{position:absolute;left:58px;top:42px;width:60px;height:60px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:700;font-size:17px;background:radial-gradient(circle at 35% 30%,#8ce7ff,#0071e3 58%,#064a91);box-shadow:0 0 35px rgba(0,113,227,.4),inset 0 0 18px rgba(255,255,255,.35);animation:corePulse 2.8s ease-in-out infinite}.robot-panel{position:absolute;left:42px;right:42px;bottom:35px;height:70px;border:1px solid rgba(0,113,227,.18);border-radius:18px;background:repeating-linear-gradient(90deg,rgba(0,113,227,.12) 0 2px,transparent 2px 12px)}.robot-arm{position:absolute;top:190px;width:24px;height:190px;border:1px solid rgba(0,113,227,.22);border-radius:16px;background:linear-gradient(180deg,#dceaf5,#a9c2d5);box-shadow:0 15px 35px rgba(0,60,130,.1)}.robot-arm.left{left:0;transform:rotate(8deg)}.robot-arm.right{right:0;transform:rotate(-8deg)}.robot-orbit{position:absolute;border:1px solid rgba(0,113,227,.18);border-radius:50%;left:95px;top:215px;width:420px;height:180px;animation:orbitSpin 16s linear infinite}.robot-orbit.orbit-b{left:70px;top:165px;width:470px;height:300px;border-color:rgba(52,199,89,.13);animation-duration:22s;animation-direction:reverse}.robot-node{position:absolute;padding:11px 16px;border-radius:12px;background:rgba(255,255,255,.86);border:1px solid rgba(0,113,227,.16);box-shadow:0 12px 35px rgba(0,60,130,.1);font-size:16px;font-weight:600;color:#424245;backdrop-filter:blur(14px);animation:robotFloat 4s ease-in-out infinite}.node-memory{left:20px;top:125px}.node-twin{right:0;top:300px;animation-delay:-1.5s}.node-agent{left:30px;bottom:75px;animation-delay:-2.5s}.stack-item b{font-size:18px}.stack-item small{font-size:15px}.signal-node{font-size:14px}.principle-grid h3{font-size:27px}.principle-grid p{font-size:17px}.section-label{font-size:18px;letter-spacing:0}.eyebrow{font-size:16px;letter-spacing:0}.hero-copy{font-size:20px}.footer{font-size:14px}@keyframes robotFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}@keyframes robotPulse{0%,100%{opacity:.65;transform:scale(.96)}50%{opacity:1;transform:scale(1.04)}}@keyframes eyePulse{0%,100%{opacity:.65}50%{opacity:1}}@keyframes corePulse{0%,100%{box-shadow:0 0 35px rgba(0,113,227,.4),inset 0 0 18px rgba(255,255,255,.35)}50%{box-shadow:0 0 60px rgba(0,113,227,.65),inset 0 0 18px rgba(255,255,255,.45)}}@keyframes orbitSpin{to{transform:rotate(360deg)}}
@media(max-width:900px){.nav-links{gap:16px}.hero{padding-top:70px;display:block}.hero-content{width:100%}.hero h1{font-size:clamp(58px,15vw,90px)}.hero-visual.robot-visual{position:relative;width:min(610px,100vw);height:min(650px,100vw);right:auto;top:auto;transform:none;margin:25px auto -55px}.scroll-cue{display:none}.section-heading{grid-template-columns:1fr;gap:25px}.concept-grid{grid-template-columns:1fr}.arrow{padding:20px}.signal-panel{grid-template-columns:1fr}.signal-copy{padding:55px 38px 20px}.signal-visual{height:370px}.principle-grid{grid-template-columns:1fr}.footer{margin:0 28px}.footer>span{margin-left:auto}.robot{transform:scale(.9);transform-origin:top center}}
@media(max-width:640px){.nav{padding:0 20px}.nav-links{display:none}.hero{padding:65px 20px 70px}.hero h1{font-size:18vw}.hero-copy{font-size:17px}.hero-visual.robot-visual{width:105vw;height:105vw;margin-left:-2.5vw}.robot{transform:scale(.72);transform-origin:top center}.robot-node{font-size:14px;padding:9px 12px}.node-memory{left:3%;top:14%}.node-twin{right:1%;top:40%}.node-agent{left:5%;bottom:12%}.section{padding:100px 20px}.section-heading h2,.vision h2{font-size:48px}.concept-card{min-height:330px;padding:30px;border-radius:20px}.architecture{padding-left:20px;padding-right:20px}.stack-item{grid-template-columns:45px 1fr 20px;padding:0 16px}.stack-item small{font-size:12px}.signal-panel{border-radius:22px}.signal-copy{padding:45px 28px 10px}.signal-copy h2{font-size:46px}.signal-visual{height:320px}.signal-orbit{width:220px;height:220px}.signal-orbit-2{width:300px;height:160px}.principle-grid article{padding:30px}.vision{padding-top:110px;padding-bottom:120px}.footer{margin:0 20px;flex-wrap:wrap}.footer>span{margin-left:0;width:100%}}
@media(prefers-reduced-motion:reduce){.robot,.robot-halo,.robot-eye,.robot-core,.robot-orbit,.vision-mark span,.eyebrow span,.signal-orbit,.reveal{animation:none}.reveal{opacity:1;transform:none;transition:none}}