:root{--black:#0a0b0d;--text:#14161a;--muted:#6b717b;--line:#e8eaee;--soft:#f5f6f8;--cyan:#00a9b8;--cyan2:#34d1dc;--radius:28px;--shadow:0 24px 80px rgba(0,0,0,.12)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:#fff}img{max-width:100%;display:block}a{text-decoration:none;color:inherit}.nav{position:fixed;top:0;left:0;right:0;z-index:20;height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 44px;background:rgba(255,255,255,.72);backdrop-filter:blur(18px);border-bottom:1px solid rgba(0,0,0,.06)}.brand{font-size:22px;font-weight:800;letter-spacing:.08em}.nav nav{display:flex;gap:28px;align-items:center;font-size:14px;color:#333}.nav-cta{padding:10px 18px;border-radius:999px;background:var(--black);color:white}.hero{height:100vh;min-height:720px;position:relative;display:grid;align-items:end;overflow:hidden}.hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:brightness(.82)}.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.58),rgba(0,0,0,.18),rgba(0,0,0,.02))}.hero-copy{position:relative;z-index:1;padding:0 7vw 13vh;color:white;max-width:780px}.eyebrow{font-size:13px;letter-spacing:.22em;text-transform:uppercase;color:var(--cyan);font-weight:800;margin:0 0 18px}.hero .eyebrow{color:rgba(255,255,255,.75)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(48px,7vw,104px);line-height:.96;letter-spacing:-.06em;margin-bottom:22px}h2{font-size:clamp(36px,5vw,78px);line-height:1.02;letter-spacing:-.055em;margin-bottom:22px}h3{font-size:24px;letter-spacing:-.03em}.hero p,.copy p,.contact p{font-size:18px;line-height:1.75;color:var(--muted)}.hero p{color:rgba(255,255,255,.82);font-size:22px}.actions{display:flex;gap:14px;margin-top:34px}.btn{display:inline-flex;padding:15px 24px;border-radius:999px;font-weight:800}.btn.primary{background:white;color:#111}.btn.ghost{border:1px solid rgba(255,255,255,.55);color:white}.split{padding:110px 7vw;display:grid;grid-template-columns:1fr 1.2fr;gap:64px;align-items:center}.section-soft{background:var(--soft)}.section-dark{background:#090a0d;color:white}.section-dark .copy p,.section-dark .section-head p,.section-dark .tech-card p{color:rgba(255,255,255,.64)}.copy{max-width:620px}.image-card{border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow)}.image-card.wide{box-shadow:none;background:transparent}.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:34px}.feature-grid span{padding:16px 18px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.8);font-weight:800}.full-bleed{position:relative;min-height:520px;overflow:hidden}.full-bleed img{width:100%;height:100%;min-height:520px;object-fit:cover}.feature-image:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.55),rgba(0,0,0,.05))}.feature-image.light-text:after{background:linear-gradient(90deg,rgba(0,0,0,.62),rgba(0,0,0,.12))}.overlay-text{position:absolute;left:7vw;bottom:70px;z-index:2;color:white;max-width:620px}.overlay-text h2{margin:0}.section-head{max-width:900px;margin:0 auto 54px;text-align:center}.section-head p{font-size:18px;color:var(--muted)}.tech{padding:110px 7vw}.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.tech-card{background:#14161c;border:1px solid rgba(255,255,255,.1);border-radius:24px;overflow:hidden}.tech-card img{height:230px;width:100%;object-fit:cover}.tech-card h3,.tech-card p{padding:0 24px}.tech-card h3{margin-top:24px}.tech-card p{padding-bottom:28px}.steps{list-style:none;margin:34px 0 0;padding:0;border-top:1px solid var(--line)}.steps li{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-bottom:1px solid var(--line)}.models{padding:110px 7vw}.model-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:22px}.model-card{background:white;border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}.model-card img{height:360px;width:100%;object-fit:cover}.model-card.large img{height:420px}.model-card div{padding:24px}.model-card p{font-size:13px;letter-spacing:.18em;font-weight:900;color:var(--cyan);margin-bottom:10px}.model-card h3{margin-bottom:8px}.model-card span{color:var(--muted)}.model-banner{margin-top:26px;border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}.design{padding:110px 7vw}.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.gallery img{border-radius:20px;background:#fff}.contact{padding:120px 7vw;background:linear-gradient(180deg,#fff,#f4f5f7)}.contact-panel{max-width:1080px;margin:auto;display:flex;justify-content:space-between;gap:50px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:32px;padding:54px;box-shadow:var(--shadow)}.qr{width:240px;border-radius:20px;border:1px solid var(--line)}.float-wechat{position:fixed;right:26px;bottom:26px;z-index:25;border:0;border-radius:999px;background:#08b35b;color:white;padding:16px 24px;font-weight:900;box-shadow:0 16px 38px rgba(8,179,91,.32);cursor:pointer}.modal{display:none;position:fixed;inset:0;z-index:40;background:rgba(0,0,0,.58);backdrop-filter:blur(8px);align-items:center;justify-content:center}.modal.open{display:flex}.modal-box{position:relative;background:white;border-radius:30px;padding:34px;text-align:center;width:min(420px,88vw);box-shadow:0 30px 100px rgba(0,0,0,.32)}.modal-box img{width:260px;margin:18px auto;border:1px solid var(--line);border-radius:18px}.close{position:absolute;right:18px;top:14px;border:0;background:transparent;font-size:34px;cursor:pointer}.reveal{opacity:0;transform:translateY(26px);transition:opacity .75s ease,transform .75s ease}.reveal.in{opacity:1;transform:none}@media(max-width:900px){.nav{padding:0 18px}.nav nav a:not(.nav-cta){display:none}.hero{min-height:640px}.split{grid-template-columns:1fr;padding:78px 22px;gap:34px}.tech,.models,.design,.contact{padding:78px 22px}.tech-grid,.model-grid,.gallery{grid-template-columns:1fr}.model-card img,.model-card.large img{height:auto}.contact-panel{display:block;padding:28px}.qr{width:220px;margin-top:28px}.hero-copy{padding:0 24px 80px}h1{font-size:52px}h2{font-size:40px}.feature-grid{grid-template-columns:1fr}.full-bleed,.full-bleed img{min-height:420px}}

/* V4 motion layer */
.scroll-progress{position:fixed;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--cyan),var(--cyan2));transform:scaleX(0);transform-origin:left center;z-index:60}
.hero .parallax-img,.full-bleed .parallax-img{height:112%;will-change:transform;transform:scale(1.08)}
.hero-copy{will-change:transform,opacity}.hero-anim .eyebrow,.hero-anim h1,.hero-anim p,.hero-anim .actions{opacity:0;transform:translateY(22px);animation:heroRise .9s cubic-bezier(.2,.8,.2,1) forwards}.hero-anim h1{animation-delay:.14s}.hero-anim p{animation-delay:.28s}.hero-anim .actions{animation-delay:.42s}@keyframes heroRise{to{opacity:1;transform:none}}
.float-img{animation:floatProduct 6.5s ease-in-out infinite;will-change:transform}@keyframes floatProduct{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.tilt{transition:transform .28s ease,box-shadow .28s ease;will-change:transform}.tilt:hover{box-shadow:0 34px 100px rgba(0,0,0,.16)}
.tech-card{transition:transform .35s ease,border-color .35s ease,background .35s ease}.tech-card:hover{transform:translateY(-8px);border-color:rgba(52,209,220,.42);background:#191c23}.model-card{transition:transform .35s ease,box-shadow .35s ease}.model-card:hover{transform:translateY(-8px);box-shadow:0 32px 90px rgba(0,0,0,.18)}.btn,.nav-cta,.float-wechat{transition:transform .22s ease,box-shadow .22s ease,background .22s ease}.btn:hover,.nav-cta:hover,.float-wechat:hover{transform:translateY(-2px)}
.process-steps li{position:relative;opacity:.42;transform:translateX(-14px);transition:opacity .55s ease,transform .55s ease}.process-steps.run li{opacity:1;transform:none}.process-steps.run li:nth-child(1){transition-delay:.05s}.process-steps.run li:nth-child(2){transition-delay:.26s}.process-steps.run li:nth-child(3){transition-delay:.47s}.process-steps li:before{content:"";position:absolute;left:-22px;top:50%;width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 0 rgba(0,169,184,.32)}.process-steps.run li:before{animation:pulseDot 1.8s ease-out infinite}@keyframes pulseDot{70%{box-shadow:0 0 0 13px rgba(0,169,184,0)}100%{box-shadow:0 0 0 0 rgba(0,169,184,0)}}
.gallery img{transition:transform .55s ease,filter .55s ease}.gallery img:hover{transform:scale(1.018);filter:contrast(1.04)}
.modal.open .modal-box{animation:modalIn .28s cubic-bezier(.2,.8,.2,1)}@keyframes modalIn{from{opacity:0;transform:translateY(18px) scale(.96)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.reveal{opacity:1!important;transform:none!important}.parallax-img{transform:none!important}.float-img{transform:none!important}}